From 444179b6b6dd0da178c6c65f99f63e9524c83cd8 Mon Sep 17 00:00:00 2001
From: Benoit Jacob <bjacob@mozilla.com>
Date: Mon, 26 Mar 2012 15:10:40 -0400
Subject: [PATCH] Bug 734423 - Upgrade WebGL conformance test suite to 1.0.1
 in-principle-final (r17063) - no review

1.0.1 is in principle a done thing. This is also the occasion to do a clean upgrade, by rm and cp, instead of applying a diff.

Upstream:
https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/conformance-suites/1.0.1/
---
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 .../glsl/misc/glsl-vertex-branch.html         |  130 ++
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 .../shader-with-webgl-identifier.vert.html    |    1 +
 .../misc/shader-without-precision.frag.html   |    1 +
 .../webgl/conformance/glsl/misc/shared.html   |    1 +
 .../misc/struct-nesting-exceeds-maximum.html  |    1 +
 .../misc/struct-nesting-under-maximum.html    |    1 +
 .../misc/uniform-location-length-limits.html  |    3 +-
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 .../samplers/glsl-function-texture2dproj.html |   11 +-
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 .../conformance/misc/uninitialized-test.html  |    7 +-
 .../more/conformance/constants.html           |    1 -
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 .../more/conformance/quickCheckAPI.js         |    3 +-
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 .../programs/gl-get-active-attribute.html     |    3 +-
 .../programs/gl-get-active-uniform.html       |    9 +-
 .../programs/gl-getshadersource.html          |    3 +-
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 .../renderbuffer-initialization.html          |   15 +-
 .../webgl/conformance/rendering/gl-clear.html |    3 +-
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 .../conformance/resources/webgl-test-utils.js |  149 +-
 .../webgl/conformance/resources/webgl-test.js |   16 +-
 .../webgl/conformance/shaders/00_shaders.txt  |    4 -
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 .../shaders/glsl-features/00_test_list.txt    |   48 -
 .../shaders/glsl-features/abs-ref.frag        |   23 -
 .../shaders/glsl-features/abs-ref.vert        |   32 -
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 .../shaders/glsl-features/abs-vec4.frag       |   15 -
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 .../shaders/glsl-features/abs.frag            |   19 -
 .../shaders/glsl-features/abs.vert            |   28 -
 .../shaders/glsl-features/base.frag           |   15 -
 .../shaders/glsl-features/base.vert           |   21 -
 .../shaders/glsl-features/ceil-ref.frag       |   24 -
 .../shaders/glsl-features/ceil-ref.vert       |   33 -
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 .../shaders/glsl-features/ceil-vec2.frag      |   18 -
 .../shaders/glsl-features/ceil-vec2.vert      |   27 -
 .../shaders/glsl-features/ceil-vec3-ref.frag  |   31 -
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 .../shaders/glsl-features/ceil-vec3.frag      |   18 -
 .../shaders/glsl-features/ceil-vec3.vert      |   26 -
 .../shaders/glsl-features/ceil-vec4-ref.frag  |   31 -
 .../shaders/glsl-features/ceil-vec4-ref.vert  |   38 -
 .../shaders/glsl-features/ceil-vec4.frag      |   17 -
 .../shaders/glsl-features/ceil-vec4.vert      |   25 -
 .../shaders/glsl-features/ceil.frag           |   18 -
 .../shaders/glsl-features/ceil.vert           |   28 -
 .../shaders/glsl-features/floor-ref.frag      |   23 -
 .../shaders/glsl-features/floor-ref.vert      |   32 -
 .../shaders/glsl-features/floor-vec2-ref.frag |   29 -
 .../shaders/glsl-features/floor-vec2-ref.vert |   37 -
 .../shaders/glsl-features/floor-vec2.frag     |   18 -
 .../shaders/glsl-features/floor-vec2.vert     |   27 -
 .../shaders/glsl-features/floor-vec3-ref.frag |   30 -
 .../shaders/glsl-features/floor-vec3-ref.vert |   37 -
 .../shaders/glsl-features/floor-vec3.frag     |   18 -
 .../shaders/glsl-features/floor-vec3.vert     |   26 -
 .../shaders/glsl-features/floor-vec4-ref.frag |   30 -
 .../shaders/glsl-features/floor-vec4-ref.vert |   37 -
 .../shaders/glsl-features/floor-vec4.frag     |   17 -
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 .../shaders/glsl-features/floor.frag          |   18 -
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 .../shaders/glsl-features/fract-ref.vert      |   32 -
 .../shaders/glsl-features/fract-vec2-ref.frag |   29 -
 .../shaders/glsl-features/fract-vec2-ref.vert |   37 -
 .../shaders/glsl-features/fract-vec2.frag     |   18 -
 .../shaders/glsl-features/fract-vec2.vert     |   27 -
 .../shaders/glsl-features/fract-vec3-ref.frag |   30 -
 .../shaders/glsl-features/fract-vec3-ref.vert |   37 -
 .../shaders/glsl-features/fract-vec3.frag     |   18 -
 .../shaders/glsl-features/fract-vec3.vert     |   26 -
 .../shaders/glsl-features/fract-vec4-ref.frag |   30 -
 .../shaders/glsl-features/fract-vec4-ref.vert |   36 -
 .../shaders/glsl-features/fract-vec4.frag     |   16 -
 .../shaders/glsl-features/fract-vec4.vert     |   24 -
 .../shaders/glsl-features/fract.frag          |   18 -
 .../shaders/glsl-features/fract.vert          |   28 -
 .../shaders/glsl-features/sign-ref.frag       |   26 -
 .../shaders/glsl-features/sign-ref.vert       |   29 -
 .../shaders/glsl-features/sign-vec2-ref.frag  |   31 -
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 .../shaders/glsl-features/sign-vec2.frag      |   18 -
 .../shaders/glsl-features/sign-vec2.vert      |   23 -
 .../shaders/glsl-features/sign-vec3-ref.frag  |   32 -
 .../shaders/glsl-features/sign-vec3-ref.vert  |   31 -
 .../shaders/glsl-features/sign-vec3.frag      |   18 -
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 .../shaders/glsl-features/sign-vec4-ref.frag  |   32 -
 .../shaders/glsl-features/sign-vec4-ref.vert  |   35 -
 .../shaders/glsl-features/sign-vec4.frag      |   17 -
 .../shaders/glsl-features/sign-vec4.vert      |   22 -
 .../shaders/glsl-features/sign.frag           |   19 -
 .../shaders/glsl-features/sign.vert           |   24 -
 .../shaders/implicit/00_shaders.txt           |   65 -
 .../shaders/implicit/add_int_float.vert       |    5 -
 .../shaders/implicit/add_int_mat2.vert        |    5 -
 .../shaders/implicit/add_int_mat3.vert        |    5 -
 .../shaders/implicit/add_int_mat4.vert        |    5 -
 .../shaders/implicit/add_int_vec2.vert        |    5 -
 .../shaders/implicit/add_int_vec3.vert        |    5 -
 .../shaders/implicit/add_int_vec4.vert        |    5 -
 .../shaders/implicit/add_ivec2_vec2.vert      |    5 -
 .../shaders/implicit/add_ivec3_vec3.vert      |    5 -
 .../shaders/implicit/add_ivec4_vec4.vert      |    5 -
 .../shaders/implicit/assign_int_to_float.vert |    5 -
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 .../implicit/assign_ivec4_to_vec4.vert        |    5 -
 .../shaders/implicit/construct_struct.vert    |    8 -
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 .../shaders/implicit/divide_int_mat2.vert     |    5 -
 .../shaders/implicit/divide_int_mat3.vert     |    5 -
 .../shaders/implicit/divide_int_mat4.vert     |    5 -
 .../shaders/implicit/divide_int_vec2.vert     |    5 -
 .../shaders/implicit/divide_int_vec3.vert     |    5 -
 .../shaders/implicit/divide_int_vec4.vert     |    5 -
 .../shaders/implicit/divide_ivec2_vec2.vert   |    5 -
 .../shaders/implicit/divide_ivec3_vec3.vert   |    5 -
 .../shaders/implicit/divide_ivec4_vec4.vert   |    5 -
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 .../shaders/implicit/equal_ivec4_vec4.vert    |    5 -
 .../shaders/implicit/function_int_float.vert  |    8 -
 .../shaders/implicit/function_ivec2_vec2.vert |    8 -
 .../shaders/implicit/function_ivec3_vec3.vert |    8 -
 .../shaders/implicit/function_ivec4_vec4.vert |    8 -
 .../shaders/implicit/greater_than.vert        |    5 -
 .../shaders/implicit/greater_than_equal.vert  |    5 -
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 .../shaders/implicit/less_than_equal.vert     |    5 -
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 .../shaders/implicit/multiply_int_mat3.vert   |    5 -
 .../shaders/implicit/multiply_int_mat4.vert   |    5 -
 .../shaders/implicit/multiply_int_vec2.vert   |    5 -
 .../shaders/implicit/multiply_int_vec3.vert   |    5 -
 .../shaders/implicit/multiply_int_vec4.vert   |    5 -
 .../shaders/implicit/multiply_ivec2_vec2.vert |    5 -
 .../shaders/implicit/multiply_ivec3_vec3.vert |    5 -
 .../shaders/implicit/multiply_ivec4_vec4.vert |    5 -
 .../shaders/implicit/not_equal_int_float.vert |    5 -
 .../implicit/not_equal_ivec2_vec2.vert        |    5 -
 .../implicit/not_equal_ivec3_vec3.vert        |    5 -
 .../implicit/not_equal_ivec4_vec4.vert        |    5 -
 .../shaders/implicit/subtract_int_float.vert  |    5 -
 .../shaders/implicit/subtract_int_mat2.vert   |    5 -
 .../shaders/implicit/subtract_int_mat3.vert   |    5 -
 .../shaders/implicit/subtract_int_mat4.vert   |    5 -
 .../shaders/implicit/subtract_int_vec2.vert   |    5 -
 .../shaders/implicit/subtract_int_vec3.vert   |    5 -
 .../shaders/implicit/subtract_int_vec4.vert   |    5 -
 .../shaders/implicit/subtract_ivec2_vec2.vert |    5 -
 .../shaders/implicit/subtract_ivec3_vec3.vert |    5 -
 .../shaders/implicit/subtract_ivec4_vec4.vert |    5 -
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 .../shaders/implicit/ternary_ivec2_vec2.vert  |    5 -
 .../shaders/implicit/ternary_ivec3_vec3.vert  |    5 -
 .../shaders/implicit/ternary_ivec4_vec4.vert  |    5 -
 .../conformance/shaders/misc/00_shaders.txt   |    5 -
 .../shaders/misc/non-ascii-comments.vert      |    9 -
 .../conformance/shaders/misc/non-ascii.vert   |    8 -
 .../conformance/shaders/misc/shared-a.frag    |   34 -
 .../conformance/shaders/misc/shared-b.frag    |   31 -
 .../conformance/shaders/misc/shared.vert      |   41 -
 .../shaders/reserved/00_shaders.txt           |    8 -
 .../shaders/reserved/_webgl_field.vert        |    8 -
 .../shaders/reserved/_webgl_function.vert     |    8 -
 .../shaders/reserved/_webgl_struct.vert       |    8 -
 .../shaders/reserved/_webgl_variable.vert     |    4 -
 .../shaders/reserved/webgl_field.vert         |    8 -
 .../shaders/reserved/webgl_function.vert      |    8 -
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 .../shaders/reserved/webgl_variable.vert      |    4 -
 .../webgl/conformance/state/gl-get-calls.html |    2 +-
 .../webgl/conformance/state/gl-geterror.html  |    3 +-
 .../conformance/textures/00_test_list.txt     |    1 +
 .../textures/compressed-tex-image.html        |    3 +-
 .../conformance/textures/gl-teximage.html     |    7 +-
 ...d-sub-image-2d-with-array-buffer-view.html |    3 +-
 ...tex-image-and-sub-image-2d-with-image.html |    3 +-
 ...tex-image-and-sub-image-2d-with-video.html |    3 +-
 .../textures/tex-sub-image-2d-bad-args.html   |    3 +-
 .../textures/tex-sub-image-2d.html            |    3 +-
 .../textures/texture-active-bind.html         |   10 +-
 .../conformance/textures/texture-clear.html   |   42 +
 .../conformance/textures/texture-mips.html    |    5 +-
 .../conformance/textures/texture-npot.html    |    8 +-
 .../textures/texture-size-cube-maps.html      |    3 +-
 .../conformance/textures/texture-size.html    |    8 +-
 ...exture-transparent-pixels-initialized.html |    3 +-
 .../uniforms/uniform-samplers-test.html       |    3 +-
 .../webgl/dont-load-image-from-internet.patch | 1354 ++++++++++++++++-
 .../ext-texture-filter-anisotropic.patch      |  105 +-
 .../test/webgl/extra/offscreen-issue.html     |   38 +
 .../out-of-bounds-uniform-array-access.html   |    7 +-
 .../test/webgl/extra/out-of-memory.html       |  184 +--
 .../canvas/test/webgl/failing_tests_linux.txt |    3 +-
 .../canvas/test/webgl/failing_tests_mac.txt   |    1 -
 .../test/webgl/failing_tests_windows.txt      |    2 -
 .../log-more-info-about-test-failures.patch   |    8 +-
 .../test/webgl/reference-cycle-test.patch     |  107 ++
 .../test/webgl/remove-uniqueObjectTest.patch  |   48 -
 .../test/webgl/resources/webgl-logo.png       |  Bin 0 -> 11020 bytes
 .../test/webgl/webgl-conformance-tests.html   |   18 +-
 401 files changed, 4310 insertions(+), 4214 deletions(-)
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 delete mode 100644 content/canvas/test/webgl/conformance/shaders/implicit/subtract_ivec2_vec2.vert
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 create mode 100644 content/canvas/test/webgl/conformance/textures/texture-clear.html
 create mode 100644 content/canvas/test/webgl/extra/offscreen-issue.html
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 delete mode 100644 content/canvas/test/webgl/remove-uniqueObjectTest.patch
 create mode 100644 content/canvas/test/webgl/resources/webgl-logo.png
 mode change 100755 => 100644 content/canvas/test/webgl/webgl-conformance-tests.html

diff --git a/content/canvas/test/webgl/00_test_list.txt b/content/canvas/test/webgl/00_test_list.txt
index ef8cb3dbbc60..03c181f2393a 100644
--- a/content/canvas/test/webgl/00_test_list.txt
+++ b/content/canvas/test/webgl/00_test_list.txt
@@ -1,6 +1,6 @@
-// files that end in .txt list other tests
-// other lines are assumed to be .html files
-
-conformance/00_test_list.txt
-conformance/more/00_test_list.txt
-
+// files that end in .txt list other tests
+// other lines are assumed to be .html files
+
+conformance/00_test_list.txt
+conformance/more/00_test_list.txt
+
diff --git a/content/canvas/test/webgl/README.mozilla b/content/canvas/test/webgl/README.mozilla
index 62a9c40b47c9..e8e65d2e53b9 100644
--- a/content/canvas/test/webgl/README.mozilla
+++ b/content/canvas/test/webgl/README.mozilla
@@ -1,6 +1,10 @@
-This is a local copy of the WebGL conformance suite, SVN revision 16776
+This is a local copy of the WebGL conformance suite, version 1.0.1, SVN revision 17036 (on the 1.0.1 branch, not on trunk)
 
-The canonical location for this testsuite is:
+The canonical location for this 1.0.1 test suite is:
+
+  https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/conformance-suites/1.0.1
+
+The canonical location of the development tree is:
 
   https://cvs.khronos.org/svn/repos/registry/trunk/public/webgl/sdk/tests
 
@@ -12,3 +16,13 @@ patch file in this directory. The exceptions (the Mozilla-specific files) are:
  * Makefile.in
  * *.patch files, if any
 
+How to do an update:
+ 1. unapply local patches (the .patch files here)
+ 2. perform the update:
+   * method A: apply diff with new version
+   * method B: erase all files here, import copy of new version.
+ 3. edit CONFORMANCE_TEST_VERSION in test_webgl_conformance_test_suite.html. That's what
+    determines with tests to run, as some tests are only enabled in some not-yet-released
+    version.
+ 4. reapply local patches.
+ 5. update this readme and the .patch files
diff --git a/content/canvas/test/webgl/README.txt b/content/canvas/test/webgl/README.txt
index 1746d80cb8af..ba710d4395dd 100644
--- a/content/canvas/test/webgl/README.txt
+++ b/content/canvas/test/webgl/README.txt
@@ -1,28 +1,28 @@
-Welcome to the WebGL Conformance Test Suite
-===========================================
-
-This is the initial release of the WebGL conformance test suite.
-
-NOTE TO USERS: Unless you are a WebGL implementor, there is no need to submit
-a conformance result using this process.  Should you discover bugs in your
-browser's WebGL implementation, either via this test suite or otherwise,
-please report them to your browser vendor's bug tracking system.
-
-FOR WEBGL IMPLEMENTORS: Please follow the isntructions below to create
-a formal conformance submission.'
-
-1) Open webgl-conformance-tests.html in your target browser
-
-2) Press the "run tests" button
-
-3) At the end of the run, press "display text summary"
-
-4) Verify that the User Agent and WebGL renderer strings identify your browser and target correctly.
-
-5) Copy the contents of the text summary (starting with "WebGL Conformance Test Results") and send via email to
-   --- NEED ADDRESS HERE --- @khronos.org
-
-
-- Version 1.0.0
-- February 24, 2011
-
+Welcome to the WebGL Conformance Test Suite
+===========================================
+
+This is the initial release of the WebGL conformance test suite.
+
+NOTE TO USERS: Unless you are a WebGL implementor, there is no need to submit
+a conformance result using this process.  Should you discover bugs in your
+browser's WebGL implementation, either via this test suite or otherwise,
+please report them to your browser vendor's bug tracking system.
+
+FOR WEBGL IMPLEMENTORS: Please follow the isntructions below to create
+a formal conformance submission.'
+
+1) Open webgl-conformance-tests.html in your target browser
+
+2) Press the "run tests" button
+
+3) At the end of the run, press "display text summary"
+
+4) Verify that the User Agent and WebGL renderer strings identify your browser and target correctly.
+
+5) Copy the contents of the text summary (starting with "WebGL Conformance Test Results") and send via email to
+   --- NEED ADDRESS HERE --- @khronos.org
+
+
+- Version 1.0.0
+- February 24, 2011
+
diff --git a/content/canvas/test/webgl/conformance/00_readme.txt b/content/canvas/test/webgl/conformance/00_readme.txt
index be651dcf4ce6..a04eaa37b331 100644
--- a/content/canvas/test/webgl/conformance/00_readme.txt
+++ b/content/canvas/test/webgl/conformance/00_readme.txt
@@ -1,13 +1,13 @@
-This file "00_test_list.txt" lists which files the test harness should run.
-
-If you add new tests you can update it with
-
-on windows
-
-   dir /b *.html >00_test_list.txt
-
-on OSX / Linux
-
-   ls -1 *.html >00_test_list.txt
-
-
+This file "00_test_list.txt" lists which files the test harness should run.
+
+If you add new tests you can update it with
+
+on windows
+
+   dir /b *.html >00_test_list.txt
+
+on OSX / Linux
+
+   ls -1 *.html >00_test_list.txt
+
+
diff --git a/content/canvas/test/webgl/conformance/LICENSE_CHROMIUM b/content/canvas/test/webgl/conformance/LICENSE_CHROMIUM
new file mode 100644
index 000000000000..a5723d213093
--- /dev/null
+++ b/content/canvas/test/webgl/conformance/LICENSE_CHROMIUM
@@ -0,0 +1,30 @@
+// For files copyrighted by the Chromium Authors, the following
+// license applies:
+
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/content/canvas/test/webgl/conformance/attribs/gl-vertex-attrib-zero-issues.html b/content/canvas/test/webgl/conformance/attribs/gl-vertex-attrib-zero-issues.html
index ff691397f811..021615f5e33c 100644
--- a/content/canvas/test/webgl/conformance/attribs/gl-vertex-attrib-zero-issues.html
+++ b/content/canvas/test/webgl/conformance/attribs/gl-vertex-attrib-zero-issues.html
@@ -37,15 +37,11 @@
 description("Test some of the issues of the difference between attrib 0 on OpenGL vs WebGL");
 debug("");
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 
 function setup(numVerts, attribIndex) {
   var program = wtu.setupProgram(
-      gl,
-      [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
-       wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
-      ['vPosition'], [attribIndex]);
+      gl, ['vshader', 'fshader'], ['vPosition'], [attribIndex]);
   // draw with something on attrib zero with a small number of vertices
   var vertexObject = gl.createBuffer();
   g_program = program;
diff --git a/content/canvas/test/webgl/conformance/canvas/buffer-offscreen-test.html b/content/canvas/test/webgl/conformance/canvas/buffer-offscreen-test.html
index bbe4c2291cb4..4a022e647dd1 100644
--- a/content/canvas/test/webgl/conformance/canvas/buffer-offscreen-test.html
+++ b/content/canvas/test/webgl/conformance/canvas/buffer-offscreen-test.html
@@ -53,9 +53,8 @@ function go() {
 
     debug("");
 
-    gl1 = create3DContext(document.getElementById("c"));
-    c2 = document.createElement('canvas');
-    gl2 = create3DContext(c2);
+    gl1 = wtu.create3DContext("c");
+    gl2 = create3DContext();
     shouldBeTrue("gl1 != null");
     shouldBeTrue("gl2 != null");
 
diff --git a/content/canvas/test/webgl/conformance/canvas/buffer-preserve-test.html b/content/canvas/test/webgl/conformance/canvas/buffer-preserve-test.html
index 33a038d6f448..7bc23db31852 100644
--- a/content/canvas/test/webgl/conformance/canvas/buffer-preserve-test.html
+++ b/content/canvas/test/webgl/conformance/canvas/buffer-preserve-test.html
@@ -59,7 +59,7 @@ function go() {
 
     debug("");
 
-    gl1 = create3DContext(document.getElementById("c"));
+    gl1 = wtu.create3DContext("c");
     if (!gl1) {
         finishTest();
         return;
diff --git a/content/canvas/test/webgl/conformance/canvas/drawingbuffer-static-canvas-test.html b/content/canvas/test/webgl/conformance/canvas/drawingbuffer-static-canvas-test.html
index 8dbeb074ed13..afe9df68d29c 100644
--- a/content/canvas/test/webgl/conformance/canvas/drawingbuffer-static-canvas-test.html
+++ b/content/canvas/test/webgl/conformance/canvas/drawingbuffer-static-canvas-test.html
@@ -94,8 +94,7 @@ debug("");
 var wtu = WebGLTestUtils;
 var err;
 var maxSize;
-var canvas = document.getElementById("canvas");
-var gl =  wtu.create3DContext(canvas);
+var gl =  wtu.create3DContext("canvas");
 if (!gl) {
   testFailed("context does not exist");
 } else {
@@ -114,8 +113,8 @@ if (!gl) {
   debug("Checking drawingBufferWidth/drawingBufferHeight");
 
   // Check that a canvas with no width or height is 300x150 pixels
-  shouldBe('gl.drawingBufferWidth', 'canvas.width');
-  shouldBe('gl.drawingBufferHeight', 'canvas.height');
+  shouldBe('gl.drawingBufferWidth', 'gl.canvas.width');
+  shouldBe('gl.drawingBufferHeight', 'gl.canvas.height');
 
   // Check that changing the canvas size to something too large falls back to reasonable values.
   maxSize = gl.getParameter(gl.MAX_VIEWPORT_DIMS);
@@ -123,8 +122,8 @@ if (!gl) {
   shouldBeTrue('maxSize[1] > 0');
 
   // debug("MAX_VIEWPORT_DIMS = " + maxSize[0] + "x" + maxSize[1]);
-  canvas.width = maxSize[0] * 4;
-  canvas.height = maxSize[1] * 4;
+  gl.canvas.width = maxSize[0] * 4;
+  gl.canvas.height = maxSize[1] * 4;
   shouldBeTrue('gl.drawingBufferWidth > 0');
   shouldBeTrue('gl.drawingBufferHeight > 0');
   shouldBeTrue('gl.drawingBufferWidth <= maxSize[0]');
@@ -133,8 +132,8 @@ if (!gl) {
 
   debug("");
   debug("Checking scaling up then back down to 50/50, drawing still works.");
-  canvas.width = 50;
-  canvas.height = 50;
+  gl.canvas.width = 50;
+  gl.canvas.height = 50;
   shouldBeTrue('gl.drawingBufferWidth == 50');
   shouldBeTrue('gl.drawingBufferHeight == 50');
   shouldBe('gl.getError()', 'gl.NO_ERROR');
diff --git a/content/canvas/test/webgl/conformance/canvas/drawingbuffer-test.html b/content/canvas/test/webgl/conformance/canvas/drawingbuffer-test.html
index 75dbabe31678..f96843b44124 100644
--- a/content/canvas/test/webgl/conformance/canvas/drawingbuffer-test.html
+++ b/content/canvas/test/webgl/conformance/canvas/drawingbuffer-test.html
@@ -93,8 +93,7 @@ debug("");
 var wtu = WebGLTestUtils;
 var err;
 var maxSize;
-var canvas = document.createElement("canvas");
-var gl = create3DContext(canvas);
+var gl = wtu.create3DContext();
 if (!gl) {
   testFailed("context does not exist");
 } else {
@@ -113,8 +112,8 @@ if (!gl) {
   debug("Checking drawingBufferWidth/drawingBufferHeight");
 
   // Check that a canvas with no width or height is 300x150 pixels
-  shouldBe('gl.drawingBufferWidth', 'canvas.width');
-  shouldBe('gl.drawingBufferHeight', 'canvas.height');
+  shouldBe('gl.drawingBufferWidth', 'gl.canvas.width');
+  shouldBe('gl.drawingBufferHeight', 'gl.canvas.height');
 
   // Check that changing the canvas size to something too large falls back to reasonable values.
   maxSize = gl.getParameter(gl.MAX_VIEWPORT_DIMS);
@@ -122,8 +121,8 @@ if (!gl) {
   shouldBeTrue('maxSize[1] > 0');
 
   // debug("MAX_VIEWPORT_DIMS = " + maxSize[0] + "x" + maxSize[1]);
-  canvas.width = maxSize[0] * 4;
-  canvas.height = maxSize[1] * 4;
+  gl.canvas.width = maxSize[0] * 4;
+  gl.canvas.height = maxSize[1] * 4;
   shouldBeTrue('gl.drawingBufferWidth > 0');
   shouldBeTrue('gl.drawingBufferHeight > 0');
   shouldBeTrue('gl.drawingBufferWidth <= maxSize[0]');
@@ -132,8 +131,8 @@ if (!gl) {
 
   debug("");
   debug("Checking scaling up then back down to 50/50, drawing still works.");
-  canvas.width = 50;
-  canvas.height = 50;
+  gl.canvas.width = 50;
+  gl.canvas.height = 50;
   shouldBeTrue('gl.drawingBufferWidth == 50');
   shouldBeTrue('gl.drawingBufferHeight == 50');
   shouldBe('gl.getError()', 'gl.NO_ERROR');
diff --git a/content/canvas/test/webgl/conformance/context/constants.html b/content/canvas/test/webgl/conformance/context/constants.html
index b7a51484450d..700dc5feeff9 100644
--- a/content/canvas/test/webgl/conformance/context/constants.html
+++ b/content/canvas/test/webgl/conformance/context/constants.html
@@ -196,7 +196,6 @@ SAMPLE_COVERAGE_INVERT         : 0x80AB,
     /*      TEXTURE_WRAP_S */
     /*      TEXTURE_WRAP_T */
     
-NUM_COMPRESSED_TEXTURE_FORMATS : 0x86A2,
 COMPRESSED_TEXTURE_FORMATS     : 0x86A3,
     
     /* HintMode */
diff --git a/content/canvas/test/webgl/conformance/context/context-attribute-preserve-drawing-buffer.html b/content/canvas/test/webgl/conformance/context/context-attribute-preserve-drawing-buffer.html
new file mode 100644
index 000000000000..19a26b6f23e1
--- /dev/null
+++ b/content/canvas/test/webgl/conformance/context/context-attribute-preserve-drawing-buffer.html
@@ -0,0 +1,113 @@
+<!--
+Copyright (C) 2012 Opera Software ASA.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY OPERA SOFTWARE ASA. ''AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ -->
+<!DOCTYPE html>
+<html>
+    <head>
+        <meta charset="utf-8">
+        <link rel="stylesheet" href="../../resources/js-test-style.css"/>
+        <script src="../../resources/js-test-pre.js"></script>
+        <script src="../resources/webgl-test.js"></script>
+        <style>
+            canvas {
+                width:50px;
+                height:50px;
+            }
+            .square {
+                display:inline-block;
+                width:50px;
+                height:50px;
+                background-color:red;
+            }
+        </style>
+        <script>
+            function checkResult(ctx1, ctx2, preserve) {
+                var imgData1 = ctx1.getImageData(0,0,1,1);
+                var imgData2 = ctx2.getImageData(0,0,1,1);
+                var correct1 = [255,0,0,255];
+                var correct2 = preserve ? [255,0,0,255] : [0,0,0,255];
+                var ok1 = true;
+                var ok2 = true;
+                for (var p = 0; p < 4; ++p) {
+                    if (imgData1.data[p] != correct1[p])
+                        ok1 = false;
+                    if (imgData2.data[p] != correct2[p])
+                        ok2 = false;
+                }
+                if (ok1 && ok2)
+                    testPassed('Rendered ok with preserveDrawingBuffer ' + preserve +'.');
+                else
+                    testFailed('Did not render ok with preserveDrawingBuffer ' + preserve + '.');
+                if (preserve) {
+                    debug('<br /><span class="pass">TEST COMPLETE</span>');
+                    notifyFinishedToHarness()
+                } else {
+                    runTest(true);
+                }
+            }
+
+            function runTest(preserve) {
+                var c1 = document.getElementById('c' + (preserve * 3 + 1));
+                var c2 = document.getElementById('c' + (preserve * 3 + 2));
+                var c3 = document.getElementById('c' + (preserve * 3 + 3));
+                var ctx1 = c1.getContext('2d');
+                var ctx2 = c2.getContext('2d');
+                var gl = c3.getContext('experimental-webgl', { alpha:false, preserveDrawingBuffer:preserve });
+                gl.clearColor(1, 0, 0, 1);
+                gl.clear(gl.COLOR_BUFFER_BIT);
+                ctx1.drawImage(c3, 0, 0);
+                setTimeout(function() { ctx2.drawImage(c3, 0, 0); checkResult(ctx1, ctx2, preserve); }, 100);
+
+            }
+        </script>
+    </head>
+    <body>
+        <div>
+            <canvas id='c1'></canvas>
+            <canvas id='c2'></canvas>
+            <canvas id='c3'></canvas>
+            <span>should look as right pattern</span>
+            <div class='square'></div>
+            <div class='square' style='background-color:black'></div>
+            <div class='square'></div>
+        </div>
+        <div>
+            <canvas id='c4'></canvas>
+            <canvas id='c5'></canvas>
+            <canvas id='c6'></canvas>
+            <span>should look as right pattern</span>
+            <div class='square'></div>
+            <div class='square'></div>
+            <div class='square'></div>
+        </div>
+        <div id="description"></div>
+        <div id="console"></div>
+        <script>
+            description('Verify that preserveDrawingBuffer attribute is honored.');
+            runTest(false);
+            successfullyParsed = true;
+            shouldBeTrue("successfullyParsed");
+        </script>
+    </body>
+</html>
diff --git a/content/canvas/test/webgl/conformance/extensions/00_test_list.txt b/content/canvas/test/webgl/conformance/extensions/00_test_list.txt
index 19cf7977b906..3c10b713dc5c 100644
--- a/content/canvas/test/webgl/conformance/extensions/00_test_list.txt
+++ b/content/canvas/test/webgl/conformance/extensions/00_test_list.txt
@@ -4,5 +4,5 @@ oes-texture-float.html
 oes-vertex-array-object.html
 webgl-debug-renderer-info.html
 webgl-debug-shaders.html
---min-version 1.0.2 webgl-experimental-compressed-textures.html
+--min-version 1.0.2 webgl-compressed-texture-s3tc.html
 
diff --git a/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgb.dxt1.js b/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgb.dxt1.js
deleted file mode 100644
index 90cd45253954..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgb.dxt1.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var img_4x4_rgb_dxt1 = [
-0xe0,0x07,0x00,0xf8,0x11,0x10,0x15,0x00,
-];
diff --git a/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.dxt1.js b/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.dxt1.js
deleted file mode 100644
index df09bb23cd33..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.dxt1.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var img_4x4_rgba_dxt1 = [
-0xe0,0x07,0x00,0xf8,0x13,0x10,0x15,0x00,
-];
diff --git a/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.dxt3.js b/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.dxt3.js
deleted file mode 100644
index 9b131b04307f..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.dxt3.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var img_4x4_rgba_dxt3 = [
-0xf6,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0xf8,0xe0,0x07,0x44,0x45,0x40,0x55,
-];
diff --git a/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.dxt5.js b/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.dxt5.js
deleted file mode 100644
index 525375eb9d1d..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.dxt5.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var img_4x4_rgba_dxt5 = [
-0xf6,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0xf8,0xe0,0x07,0x44,0x45,0x40,0x55,
-];
diff --git a/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.raw.js b/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.raw.js
deleted file mode 100644
index f13ac555bd02..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/compressed-textures/4x4.rgba.raw.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var img_4x4_rgba_raw = [
-0xff,0x00,0x00,0x69,0x00,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,
-];
diff --git a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgb.dxt1.js b/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgb.dxt1.js
deleted file mode 100644
index a1038bc4434e..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgb.dxt1.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var img_8x8_rgb_dxt1 = [
-0xe0,0x07,0x00,0xf8,0x11,0x10,0x15,0x00,0x1f,0x00,0xe0,0xff,0x11,0x10,0x15,0x00,0xe0,0x07,0x1f,0xf8,0x44,0x45,0x40,0x55,0x1f,0x00,0xff,0x07,0x44,0x45,0x40,0x55,
-];
diff --git a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.dxt1.js b/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.dxt1.js
deleted file mode 100644
index d0ea7add1847..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.dxt1.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var img_8x8_rgba_dxt1 = [
-0xe0,0x07,0x00,0xf8,0x13,0x13,0x15,0x00,0x1f,0x00,0xe0,0xff,0x11,0x10,0x15,0x00,0xe0,0x07,0x1f,0xf8,0x44,0x45,0x43,0x57,0x1f,0x00,0xff,0x07,0x44,0x45,0x40,0x55,
-];
diff --git a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.dxt3.js b/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.dxt3.js
deleted file mode 100644
index bf377686f527..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.dxt3.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var img_8x8_rgba_dxt3 = [
-0xf6,0xff,0xf6,0xff,0xff,0xff,0xff,0xff,0x00,0xf8,0xe0,0x07,0x44,0x45,0x40,0x55,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xe0,0xff,0x1f,0x00,0x44,0x45,0x40,0x55,0xff,0xff,0xff,0xff,0xf6,0xff,0xf6,0xff,0x1f,0xf8,0xe0,0x07,0x11,0x10,0x15,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x07,0x1f,0x00,0x11,0x10,0x15,0x00,
-];
diff --git a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.dxt5.js b/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.dxt5.js
deleted file mode 100644
index 4819227a4c88..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.dxt5.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var img_8x8_rgba_dxt5 = [
-0xff,0x69,0x01,0x10,0x00,0x00,0x00,0x00,0x00,0xf8,0xe0,0x07,0x44,0x45,0x40,0x55,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0xe0,0xff,0x1f,0x00,0x44,0x45,0x40,0x55,0xff,0x69,0x00,0x00,0x00,0x01,0x10,0x00,0x1f,0xf8,0xe0,0x07,0x11,0x10,0x15,0x00,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x07,0x1f,0x00,0x11,0x10,0x15,0x00,
-];
diff --git a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.pvrtc4bpp.js b/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.pvrtc4bpp.js
deleted file mode 100644
index 64f446060417..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.pvrtc4bpp.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var img_8x8_rgba_pvrtc4bpp = [
-0x33,0x30,0x3f,0x00,0xe0,0x83,0x00,0xfc,0xcc,0xcf,0xc0,0xff,0xe0,0x83,0x1f,0xfc,0xcc,0xcf,0xc0,0xff,0xe0,0xff,0x1f,0x80,0x33,0x30,0x3f,0x00,0xfe,0x83,0x1f,0x80,
-];
diff --git a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.raw.js b/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.raw.js
deleted file mode 100644
index 8ace90a75908..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/compressed-textures/8x8.rgba.raw.js
+++ /dev/null
@@ -1,3 +0,0 @@
-var img_8x8_rgba_raw = [
-0xff,0x00,0x00,0x69,0x00,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0x00,0x69,0x00,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0x00,0x69,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0xff,0x00,0xff,0x69,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,
-];
diff --git a/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html b/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html
index 8f8167a620b3..f820468a40f7 100644
--- a/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html
+++ b/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html
@@ -120,8 +120,8 @@ if (!gl) {
         runHintTestEnabled();
         runShaderTests(true);
         runOutputTests();
-      // similar to bug 683216, see the discussion in bug 630672
-      // runUniqueObjectTest();
+        runUniqueObjectTest();
+        runReferenceCycleTest();
     }
 }
 
@@ -257,11 +257,7 @@ function runOutputTests() {
     gl.viewport(0, 0, canvas.width, canvas.height);
     gl.hint(ext.FRAGMENT_SHADER_DERIVATIVE_HINT_OES, gl.NICEST);
 
-    var shaders = [
-        wtu.loadShaderFromScript(gl, "outputVertexShader"),
-        wtu.loadShaderFromScript(gl, "outputFragmentShader")
-    ];
-    var program = wtu.setupProgram(gl, shaders, ['vPosition', 'texCoord0'], [0, 1]);
+    var program = wtu.setupProgram(gl, ["outputVertexShader", "outputFragmentShader"], ['vPosition', 'texCoord0'], [0, 1]);
     var quadParameters = wtu.setupUnitQuad(gl, 0, 1);
 
     function readLocation(x, y) {
@@ -375,6 +371,20 @@ function runUniqueObjectTest()
     shouldBe('gl.getExtension("OES_standard_derivatives").myProperty', '2');
 }
 
+function runReferenceCycleTest()
+{
+    // create some reference cycles. The goal is to see if they cause leaks. The point is that
+    // some browser test runners have instrumentation to detect leaked refcounted objects.
+
+    debug("Testing reference cycles between context and extension objects");
+    var ext = gl.getExtension("OES_standard_derivatives");
+
+    // create cycle between extension and context, since the context has to hold a reference to the extension
+    ext.context = gl;
+
+    // create a self-cycle on the extension object
+    ext.ext = ext;
+}
 
 debug("");
 successfullyParsed = true;
diff --git a/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html b/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html
index 3b6d2459767c..82b704cd371c 100644
--- a/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html
+++ b/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html
@@ -66,7 +66,7 @@ if (!gl) {
 
   var texturedShaders = [
       wtu.setupSimpleTextureVertexShader(gl),
-      wtu.loadShaderFromScript(gl, "testFragmentShader")
+      "testFragmentShader"
   ];
   var testProgram =
       wtu.setupProgram(gl,
@@ -85,8 +85,8 @@ if (!gl) {
       testPassed("Successfully enabled OES_texture_float extension");
       runTextureCreationTest(testProgram, true);
       runRenderTargetTest(testProgram);
-      // bug 683216, see the discussion in bug 630672
-      // runUniqueObjectTest();
+      runUniqueObjectTest();
+      runReferenceCycleTest();
   }
 }
 
@@ -165,13 +165,9 @@ function runRenderTargetTest(testProgram)
     if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE)
         return;
 
-    var shaders = [
-        wtu.loadShaderFromScript(gl, "positionVertexShader"),
-        wtu.loadShaderFromScript(gl, "floatingPointFragmentShader")
-    ];
     var renderProgram =
         wtu.setupProgram(gl,
-                         shaders,
+                         ["positionVertexShader", "floatingPointFragmentShader"],
                          ['vPosition'],
                          [0]);
     wtu.drawQuad(gl);
@@ -216,6 +212,20 @@ function runUniqueObjectTest()
     shouldBe('gl.getExtension("OES_texture_float").myProperty', '2');
 }
 
+function runReferenceCycleTest()
+{
+    // create some reference cycles. The goal is to see if they cause leaks. The point is that
+    // some browser test runners have instrumentation to detect leaked refcounted objects.
+
+    debug("Testing reference cycles between context and extension objects");
+    var ext = gl.getExtension("OES_texture_float");
+
+    // create cycle between extension and context, since the context has to hold a reference to the extension
+    ext.context = gl;
+
+    // create a self-cycle on the extension object
+    ext.ext = ext;
+}
 
 debug("");
 successfullyParsed = true;
diff --git a/content/canvas/test/webgl/conformance/extensions/webgl-compressed-texture-s3tc.html b/content/canvas/test/webgl/conformance/extensions/webgl-compressed-texture-s3tc.html
new file mode 100644
index 000000000000..45e06c7bbe35
--- /dev/null
+++ b/content/canvas/test/webgl/conformance/extensions/webgl-compressed-texture-s3tc.html
@@ -0,0 +1,614 @@
+<!--
+Copyright (c) 2012 The Chromium Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+ -->
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<link rel="stylesheet" href="../../resources/js-test-style.css"/>
+<script src="../../resources/js-test-pre.js"></script>
+<script src="../resources/webgl-test.js"></script>
+<script src="../resources/webgl-test-utils.js"></script>
+<title>WebGL WEBGL_compressed_texture_s3tc Conformance Tests</title>
+<style>
+img {
+ border: 1px solid black;
+ margin-right: 1em;
+}
+.testimages {
+}
+
+.testimages br {
+  clear: both;
+}
+
+.testimages > div {
+  float: left;
+  margin: 1em;
+}
+</style>
+</head>
+<body>
+<div id="description"></div>
+<canvas id="canvas" width="8" height="8" style="width: 8px; height: 8px;"></canvas>
+<div id="console"></div>
+<script>
+description("This test verifies the functionality of the WEBGL_compressed_texture_s3tc extension, if it is available.");
+
+debug("");
+
+var img_4x4_rgba_raw = new Uint8Array([
+    0xff,0x00,0x00,0x69,0x00,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,
+]);
+var img_4x4_rgb_dxt1 = new Uint8Array([
+    0xe0,0x07,0x00,0xf8,0x11,0x10,0x15,0x00,
+]);
+var img_4x4_rgba_dxt1 = new Uint8Array([
+    0xe0,0x07,0x00,0xf8,0x13,0x10,0x15,0x00,
+]);
+var img_4x4_rgba_dxt3 = new Uint8Array([
+    0xf6,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0xf8,0xe0,0x07,0x44,0x45,0x40,0x55,
+]);
+var img_4x4_rgba_dxt5 = new Uint8Array([
+    0xf6,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0xf8,0xe0,0x07,0x44,0x45,0x40,0x55,
+]);
+var img_8x8_rgba_raw = new Uint8Array([
+    0xff,0x00,0x00,0x69,0x00,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0x00,0x69,0x00,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0xff,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0x00,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0x00,0x69,0x00,0xff,0x00,0xff,0x00,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0xff,0x00,0xff,0x69,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,0x00,0xff,0xff,0xff,
+]);
+var img_8x8_rgb_dxt1 = new Uint8Array([
+    0xe0,0x07,0x00,0xf8,0x11,0x10,0x15,0x00,0x1f,0x00,0xe0,0xff,0x11,0x10,0x15,0x00,0xe0,0x07,0x1f,0xf8,0x44,0x45,0x40,0x55,0x1f,0x00,0xff,0x07,0x44,0x45,0x40,0x55,
+]);
+var img_8x8_rgba_dxt1 = new Uint8Array([
+    0xe0,0x07,0x00,0xf8,0x13,0x13,0x15,0x00,0x1f,0x00,0xe0,0xff,0x11,0x10,0x15,0x00,0xe0,0x07,0x1f,0xf8,0x44,0x45,0x43,0x57,0x1f,0x00,0xff,0x07,0x44,0x45,0x40,0x55,
+]);
+var img_8x8_rgba_dxt3 = new Uint8Array([
+    0xf6,0xff,0xf6,0xff,0xff,0xff,0xff,0xff,0x00,0xf8,0xe0,0x07,0x44,0x45,0x40,0x55,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xe0,0xff,0x1f,0x00,0x44,0x45,0x40,0x55,0xff,0xff,0xff,0xff,0xf6,0xff,0xf6,0xff,0x1f,0xf8,0xe0,0x07,0x11,0x10,0x15,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x07,0x1f,0x00,0x11,0x10,0x15,0x00,
+]);
+var img_8x8_rgba_dxt5 = new Uint8Array([
+    0xff,0x69,0x01,0x10,0x00,0x00,0x00,0x00,0x00,0xf8,0xe0,0x07,0x44,0x45,0x40,0x55,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0xe0,0xff,0x1f,0x00,0x44,0x45,0x40,0x55,0xff,0x69,0x00,0x00,0x00,0x01,0x10,0x00,0x1f,0xf8,0xe0,0x07,0x11,0x10,0x15,0x00,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0x07,0x1f,0x00,0x11,0x10,0x15,0x00,
+]);
+
+var wtu = WebGLTestUtils;
+var canvas = document.getElementById("canvas");
+var gl = wtu.create3DContext(canvas, {antialias: false});
+var program = wtu.setupTexturedQuad(gl);
+var ext = null;
+var vao = null;
+var validFormats = {
+    COMPRESSED_RGB_S3TC_DXT1_EXT        : 0x83F0,
+    COMPRESSED_RGBA_S3TC_DXT1_EXT       : 0x83F1,
+    COMPRESSED_RGBA_S3TC_DXT3_EXT       : 0x83F2,
+    COMPRESSED_RGBA_S3TC_DXT5_EXT       : 0x83F3,
+};
+var name;
+var supportedFormats;
+
+if (!gl) {
+    testFailed("WebGL context does not exist");
+} else {
+    testPassed("WebGL context exists");
+
+    // Run tests with extension disabled
+    runTestDisabled();
+
+    // Query the extension and store globally so shouldBe can access it
+    ext = gl.getExtension("WEBGL_compressed_texture_s3tc");
+    if (!ext) {
+        ext = gl.getExtension("WEBKIT_WEBGL_compressed_texture_s3tc");
+    }
+    if (!ext) {
+        testPassed("No WEBGL_compressed_texture_s3tc support -- this is legal");
+        runSupportedTest(false);
+    } else {
+        testPassed("Successfully enabled WEBGL_compressed_texture_s3tc extension");
+
+        runSupportedTest(true);
+        runTestExtension();
+    }
+}
+
+function runSupportedTest(extensionEnabled) {
+    var supported = gl.getSupportedExtensions();
+    if (supported.indexOf("WEBGL_compressed_texture_s3tc") >= 0 ||
+        supported.indexOf("WEBKIT_WEBGL_compressed_texture_s3tc") >= 0) {
+        if (extensionEnabled) {
+            testPassed("WEBGL_compressed_texture_s3tc listed as supported and getExtension succeeded");
+        } else {
+            testFailed("WEBGL_compressed_texture_s3tc listed as supported but getExtension failed");
+        }
+    } else {
+        if (extensionEnabled) {
+            testFailed("WEBGL_compressed_texture_s3tc not listed as supported but getExtension succeeded");
+        } else {
+            testPassed("WEBGL_compressed_texture_s3tc not listed as supported and getExtension failed -- this is legal");
+        }
+    }
+}
+
+
+function runTestDisabled() {
+    debug("Testing binding enum with extension disabled");
+
+    shouldBe('gl.getParameter(gl.COMPRESSED_TEXTURE_FORMATS)', '[]');
+}
+
+function formatExists(format, supportedFormats) {
+    for (var ii = 0; ii < supportedFormats.length; ++ii) {
+        if (format == supportedFormats[ii]) {
+            testPassed("supported format " + formatToString(format) + " is exists");
+            return;
+        }
+    }
+    testFailed("supported format " + formatToString(format) + " does not exist");
+}
+
+function formatToString(format) {
+    for (var p in ext) {
+        if (ext[p] == format) {
+            return p;
+        }
+    }
+    return "0x" + format.toString(16);
+}
+
+function runTestExtension() {
+    debug("Testing WEBGL_compressed_texture_s3tc");
+
+    // check that all format enums exist.
+    for (name in validFormats) {
+        var expected = "0x" + validFormats[name].toString(16);
+        var actual = "ext['" + name + "']";
+        shouldBe(actual, expected);
+    }
+
+    supportedFormats = gl.getParameter(gl.COMPRESSED_TEXTURE_FORMATS);
+    // There should be exactly 4 formats
+    shouldBe("supportedFormats.length", "4");
+
+    // check that all 4 formats exist
+    for (var name in validFormats.length) {
+        formatExists(validFormats[name], supportedFormats);
+    }
+
+    // Test each format
+    testDXT1_RGB();
+    testDXT1_RGBA();
+    testDXT3_RGBA();
+    testDXT5_RGBA();
+}
+
+function testDXT1_RGB() {
+    var tests = [
+        {   width: 4,
+            height: 4,
+            channels: 3,
+            data: img_4x4_rgb_dxt1,
+            format: ext.COMPRESSED_RGB_S3TC_DXT1_EXT
+        },
+        {   width: 8,
+            height: 8,
+            channels: 3,
+            data: img_8x8_rgb_dxt1,
+            format: ext.COMPRESSED_RGB_S3TC_DXT1_EXT
+        }
+    ];
+    testDXTTextures(tests);
+}
+
+function testDXT1_RGBA() {
+    var tests = [
+        {   width: 4,
+            height: 4,
+            channels: 4,
+            data: img_4x4_rgba_dxt1,
+            format: ext.COMPRESSED_RGBA_S3TC_DXT1_EXT
+        },
+        {   width: 8,
+            height: 8,
+            channels: 4,
+            data: img_8x8_rgba_dxt1,
+            format: ext.COMPRESSED_RGBA_S3TC_DXT1_EXT
+        }
+    ];
+    testDXTTextures(tests);
+}
+
+function testDXT3_RGBA() {
+    var tests = [
+        {   width: 4,
+            height: 4,
+            channels: 4,
+            data: img_4x4_rgba_dxt3,
+            format: ext.COMPRESSED_RGBA_S3TC_DXT3_EXT
+        },
+        {   width: 8,
+            height: 8,
+            channels: 4,
+            data: img_8x8_rgba_dxt3,
+            format: ext.COMPRESSED_RGBA_S3TC_DXT3_EXT
+        }
+    ];
+    testDXTTextures(tests);
+}
+
+function testDXT5_RGBA() {
+    var tests = [
+        {   width: 4,
+            height: 4,
+            channels: 4,
+            data: img_4x4_rgba_dxt5,
+            format: ext.COMPRESSED_RGBA_S3TC_DXT5_EXT
+        },
+        {   width: 8,
+            height: 8,
+            channels: 4,
+            data: img_8x8_rgba_dxt5,
+            format: ext.COMPRESSED_RGBA_S3TC_DXT5_EXT
+        }
+    ];
+    testDXTTextures(tests);
+}
+
+function testDXTTextures(tests) {
+    debug("<hr/>");
+    for (var ii = 0; ii < tests.length; ++ii) {
+        testDXTTexture(tests[ii]);
+    }
+}
+
+function uncompressDXTBlock(
+    destBuffer, destX, destY, destWidth, src, srcOffset, format) {
+    function make565(src, offset) {
+        return src[offset + 0] + src[offset + 1] * 256;
+    }
+    function make8888From565(c) {
+        return [
+                Math.floor(((c >> 11) & 0x1F) * 255 / 31),
+                Math.floor(((c >>    5) & 0x3F) * 255 / 63),
+                Math.floor(((c >>    0) & 0x1F) * 255 / 31),
+                255
+            ];
+    }
+    function mix(mult, c0, c1, div) {
+        var r = [];
+        for (var ii = 0; ii < c0.length; ++ii) {
+            r[ii] = Math.floor((c0[ii] * mult + c1[ii]) / div);
+        }
+        return r;
+    }
+    var isDXT1 = format == ext.COMPRESSED_RGB_S3TC_DXT1_EXT ||
+                 format == ext.COMPRESSED_RGBA_S3TC_DXT1_EXT;
+    var colorOffset = srcOffset + (isDXT1 ? 0 : 8);
+    var color0 = make565(src, colorOffset + 0);
+    var color1 = make565(src, colorOffset + 2);
+    var c0gtc1 = color0 > color1 || !isDXT1;
+    var rgba0 = make8888From565(color0);
+    var rgba1 = make8888From565(color1);
+    var colors = [
+            rgba0,
+            rgba1,
+            c0gtc1 ? mix(2, rgba0, rgba1, 3) : mix(1, rgba0, rgba1, 2),
+            c0gtc1 ? mix(2, rgba1, rgba0, 3) : [0, 0, 0, 255]
+        ];
+
+    // yea I know there is a lot of math in this inner loop.
+    // so sue me.
+    for (var yy = 0; yy < 4; ++yy) {
+        var pixels = src[colorOffset + 4 + yy];
+        for (var xx = 0; xx < 4; ++xx) {
+            var dstOff = ((destY + yy) * destWidth + destX + xx) * 4;
+            var code = (pixels >> (xx * 2)) & 0x3;
+            var srcColor = colors[code];
+            var alpha;
+            switch (format) {
+            case ext.COMPRESSED_RGB_S3TC_DXT1_EXT:
+                alpha = 255;
+                break;
+            case ext.COMPRESSED_RGBA_S3TC_DXT1_EXT:
+                alpha = (code == 3 && !c0gtc1) ? 0 : 255;
+                break;
+            case ext.COMPRESSED_RGBA_S3TC_DXT3_EXT:
+                {
+                    var alpha0 = src[srcOffset + yy * 2 + Math.floor(xx / 2)];
+                    var alpha1 = (alpha0 >> ((xx % 2) * 4)) & 0xF;
+                    alpha = alpha1 | (alpha1 << 4);
+                }
+                break;
+            case ext.COMPRESSED_RGBA_S3TC_DXT5_EXT:
+                {
+                    var alpha0 = src[srcOffset + 0];
+                    var alpha1 = src[srcOffset + 1];
+                    var alphaOff = Math.floor(yy / 2) * 3 + 2;
+                    var alphaBits =
+                         src[srcOffset + alphaOff + 0] +
+                         src[srcOffset + alphaOff + 1] * 256 +
+                         src[srcOffset + alphaOff + 2] * 65536;
+                    var alphaShift = (yy % 2) * 12 + xx * 3;
+                    var alphaCode = (alphaBits >> alphaShift) & 0x7;
+                    if (alpha0 > alpha1) {
+                        switch (alphaCode) {
+                        case 0:
+                            alpha = alpha0;
+                            break;
+                        case 1:
+                            alpha = alpha1;
+                            break;
+                        default:
+                            alpha = ((8 - alphaCode) * alpha0 + (alphaCode - 1) * alpha1) / 7;
+                            break;
+                        }
+                    } else {
+                        switch (alphaCode) {
+                        case 0:
+                            alpha = alpha0;
+                            break;
+                        case 1:
+                            alpha = alpha1;
+                            break;
+                        case 6:
+                            alpha = 0;
+                            break;
+                        case 7:
+                            alpha = 255;
+                            break;
+                        default:
+                            alpha = ((6 - alphaCode) * alpha0 + (alphaCode - 1) * alpha1) / 5;
+                            break;
+                        }
+                    }
+                }
+                break;
+            default:
+                throw "bad format";
+            }
+            destBuffer[dstOff + 0] = srcColor[0];
+            destBuffer[dstOff + 1] = srcColor[1];
+            destBuffer[dstOff + 2] = srcColor[2];
+            destBuffer[dstOff + 3] = alpha;
+        }
+    }
+}
+
+function getBlockSize(format) {
+  var isDXT1 = format == ext.COMPRESSED_RGB_S3TC_DXT1_EXT ||
+               format == ext.COMPRESSED_RGBA_S3TC_DXT1_EXT;
+  return isDXT1 ? 8 : 16;
+}
+
+function uncompressDXT(width, height, data, format) {
+    if (width % 4 || height % 4) throw "bad width or height";
+
+    var dest = new Uint8Array(width * height * 4);
+    var blocksAcross = width / 4;
+    var blocksDown = height / 4;
+    var blockSize = getBlockSize(format);
+    for (var yy = 0; yy < blocksDown; ++yy) {
+        for (var xx = 0; xx < blocksAcross; ++xx) {
+            uncompressDXTBlock(
+                dest, xx * 4, yy * 4, width, data,
+                (yy * blocksAcross + xx) * blockSize, format);
+        }
+    }
+    return dest;
+}
+
+function copyRect(data, srcX, srcY, dstX, dstY, width, height, stride) {
+  var bytesPerLine = width * 4;
+  var srcOffset = srcX * 4 + srcY * stride;
+  var dstOffset = dstX * 4 + dstY * stride;
+  for (; height > 0; --height) {
+    for (var ii = 0; ii < bytesPerLine; ++ii) {
+      data[dstOffset + ii] = data[srcOffset + ii];
+    }
+    srcOffset += stride;
+    dstOffset += stride;
+  }
+}
+
+function testDXTTexture(test) {
+    var data = new Uint8Array(test.data);
+    var width = test.width;
+    var height = test.height;
+    var format = test.format;
+
+    var uncompressedData = uncompressDXT(width, height, data, format);
+
+    canvas.width = width;
+    canvas.height = height;
+    gl.viewport(0, 0, width, height);
+    debug("testing " + formatToString(format) + " " + width + "x" + height);
+    var tex = gl.createTexture();
+    gl.bindTexture(gl.TEXTURE_2D, tex);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
+    gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height, 0, data);
+    glErrorShouldBe(gl, gl.NO_ERROR, "uploading compressed texture");
+    wtu.drawQuad(gl);
+    compareRect(width, height, test.channels, width, height, uncompressedData, data, format);
+
+    gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height, 1, data);
+    glErrorShouldBe(gl, gl.INVALID_VALUE, "non 0 border");
+
+    gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width + 4, height, 0, data);
+    glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions");
+    gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height + 4, 0, data);
+    glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions");
+    gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width - 4, height, 0, data);
+    glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions");
+    gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height - 4, 0, data);
+    glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions");
+
+    gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width - 1, height, 0, data);
+    glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions");
+    gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width - 2, height, 0, data);
+    glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions");
+    gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height - 1, 0, data);
+    glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions");
+    gl.compressedTexImage2D(gl.TEXTURE_2D, 0, format, width, height - 2, 0, data);
+    glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions");
+
+    if (width == 4) {
+      gl.compressedTexImage2D(gl.TEXTURE_2D, 1, format, 1, height, 0, data);
+      glErrorShouldBe(gl, gl.NO_ERROR, "valid dimensions for level > 0");
+      gl.compressedTexImage2D(gl.TEXTURE_2D, 1, format, 2, height, 0, data);
+      glErrorShouldBe(gl, gl.NO_ERROR, "valid dimensions for level > 0");
+    }
+    if (height == 4) {
+      gl.compressedTexImage2D(gl.TEXTURE_2D, 1, format, width, 1, 0, data);
+      glErrorShouldBe(gl, gl.NO_ERROR, "valid dimensions for level > 0");
+      gl.compressedTexImage2D(gl.TEXTURE_2D, 1, format, width, 2, 0, data);
+      glErrorShouldBe(gl, gl.NO_ERROR, "valid dimensions for level > 0");
+    }
+
+    // pick a wrong format that uses the same amount of data.
+    var wrongFormat;
+    switch (format) {
+    case ext.COMPRESSED_RGB_S3TC_DXT1_EXT:
+      wrongFormat = ext.COMPRESSED_RGBA_S3TC_DXT1_EXT;
+      break;
+    case ext.COMPRESSED_RGBA_S3TC_DXT1_EXT:
+      wrongFormat = ext.COMPRESSED_RGB_S3TC_DXT1_EXT;
+      break;
+    case ext.COMPRESSED_RGBA_S3TC_DXT3_EXT:
+      wrongFormat = ext.COMPRESSED_RGBA_S3TC_DXT5_EXT;
+      break;
+    case ext.COMPRESSED_RGBA_S3TC_DXT5_EXT:
+      wrongFormat = ext.COMPRESSED_RGBA_S3TC_DXT3_EXT;
+      break;
+    }
+
+    gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height, wrongFormat, data);
+    glErrorShouldBe(gl, gl.INVALID_OPERATION, "format does not match");
+
+    gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width + 4, height, format, data);
+    glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions");
+    gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height + 4, format, data);
+    glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions");
+    gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width - 4, height, format, data);
+    glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions");
+    gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height - 4, format, data);
+    glErrorShouldBe(gl, gl.INVALID_VALUE, "data size does not match dimensions");
+
+    gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width - 1, height, format, data);
+    glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions");
+    gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width - 2, height, format, data);
+    glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions");
+    gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height - 1, format, data);
+    glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions");
+    gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height - 2, format, data);
+    glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid dimensions");
+
+    var subData = new Uint8Array(data.buffer, 0, getBlockSize(format));
+
+    if (width == 8 && height == 8) {
+        gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 1, 0, 4, 4, format, subData);
+        glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid offset");
+        gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, 0, 1, 4, 4, format, subData);
+        glErrorShouldBe(gl, gl.INVALID_OPERATION, "invalid offset");
+    }
+
+    var stride = width * 4;
+    for (var yoff = 0; yoff < height; yoff += 4) {
+        for (var xoff = 0; xoff < width; xoff += 4) {
+            copyRect(uncompressedData, 0, 0, xoff, yoff, 4, 4, stride);
+            gl.compressedTexSubImage2D(gl.TEXTURE_2D, 0, xoff, yoff, 4, 4, format, subData);
+            glErrorShouldBe(gl, gl.NO_ERROR, "uploading compressed texture");
+            wtu.drawQuad(gl);
+            compareRect(width, height, test.channels, width, height, uncompressedData, data, format);
+        }
+    }
+}
+
+function insertImg(element, caption, img) {
+    var div = document.createElement("div");
+    div.appendChild(img);
+    var label = document.createElement("div");
+    label.appendChild(document.createTextNode(caption));
+    div.appendChild(label);
+    element.appendChild(div);
+}
+
+function makeImage(imageWidth, imageHeight, dataWidth, data, alpha) {
+    var scale = 8;
+    var c = document.createElement("canvas");
+    c.width = imageWidth * scale;
+    c.height = imageHeight * scale;
+    var ctx = c.getContext("2d");
+    for (var yy = 0; yy < imageWidth; ++yy) {
+        for (var xx = 0; xx < imageHeight; ++xx) {
+            var offset = (yy * dataWidth + xx) * 4;
+            ctx.fillStyle = "rgba(" +
+                    data[offset + 0] + "," +
+                    data[offset + 1] + "," +
+                    data[offset + 2] + "," +
+                    (alpha ? data[offset + 3] / 255 : 1) + ")";
+            ctx.fillRect(xx * scale, yy * scale, scale, scale);
+        }
+    }
+    var img = document.createElement("img");
+    img.src = c.toDataURL();
+    return img;
+}
+function compareRect(
+        actualWidth, actualHeight, actualChannels,
+        dataWidth, dataHeight, expectedData,
+        testData, testFormat) {
+    var actual = new Uint8Array(actualWidth * actualHeight * 4);
+    gl.readPixels(
+            0, 0, actualWidth, actualHeight, gl.RGBA, gl.UNSIGNED_BYTE, actual);
+
+    var div = document.createElement("div");
+    div.className = "testimages";
+    insertImg(div, "expected", makeImage(
+            actualWidth, actualHeight, dataWidth, expectedData,
+            actualChannels == 4));
+    insertImg(div, "actual", makeImage(
+            actualWidth, actualHeight, actualWidth, actual,
+            actualChannels == 4));
+    div.appendChild(document.createElement('br'));
+    document.getElementById("console").appendChild(div);
+
+    var failed = false;
+    for (var yy = 0; yy < actualHeight; ++yy) {
+        for (var xx = 0; xx < actualWidth; ++xx) {
+            var actualOffset = (yy * actualWidth + xx) * 4;
+            var expectedOffset = (yy * dataWidth + xx) * 4;
+            var expected = [
+                    expectedData[expectedOffset + 0],
+                    expectedData[expectedOffset + 1],
+                    expectedData[expectedOffset + 2],
+                    (actualChannels == 3 ? 255 : expectedData[expectedOffset + 3])
+            ];
+            for (var jj = 0; jj < 4; ++jj) {
+                if (actual[actualOffset + jj] != expected[jj]) {
+                    failed = true;
+                    var was = actual[actualOffset + 0].toString();
+                    for (j = 1; j < 4; ++j) {
+                        was += "," + actual[actualOffset + j];
+                    }
+                    testFailed('at (' + xx + ', ' + yy +
+                                         ') expected: ' + expected + ' was ' + was);
+                }
+            }
+        }
+    }
+    if (!failed) {
+        testPassed("texture rendered correctly");
+    }
+}
+
+function testPVRTCTextures() {
+    testFailed("PVRTC test not yet implemented");
+}
+
+debug("");
+successfullyParsed = true;
+</script>
+<script src="../../resources/js-test-post.js"></script>
+
+</body>
+</html>
diff --git a/content/canvas/test/webgl/conformance/extensions/webgl-debug-renderer-info.html b/content/canvas/test/webgl/conformance/extensions/webgl-debug-renderer-info.html
index f4689e25652b..ef3dcb323a52 100644
--- a/content/canvas/test/webgl/conformance/extensions/webgl-debug-renderer-info.html
+++ b/content/canvas/test/webgl/conformance/extensions/webgl-debug-renderer-info.html
@@ -26,8 +26,7 @@ description("This test verifies the functionality of the WEBGL_debug_renderer_in
 debug("");
 
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("canvas");
-var gl = create3DContext(canvas);
+var gl = wtu.create3DContext("canvas");
 var ext = null;
 var vao = null;
 
diff --git a/content/canvas/test/webgl/conformance/extensions/webgl-debug-shaders.html b/content/canvas/test/webgl/conformance/extensions/webgl-debug-shaders.html
index ac70d993d830..58fde2d0c2e1 100644
--- a/content/canvas/test/webgl/conformance/extensions/webgl-debug-shaders.html
+++ b/content/canvas/test/webgl/conformance/extensions/webgl-debug-shaders.html
@@ -26,8 +26,7 @@ description("This test verifies the functionality of the WEBGL_debug_shaders ext
 debug("");
 
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("canvas");
-var gl = create3DContext(canvas);
+var gl = wtu.create3DContext("canvas");
 var ext = null;
 var shader = null;
 
diff --git a/content/canvas/test/webgl/conformance/extensions/webgl-experimental-compressed-textures.html b/content/canvas/test/webgl/conformance/extensions/webgl-experimental-compressed-textures.html
deleted file mode 100644
index 2dbf612ecb0a..000000000000
--- a/content/canvas/test/webgl/conformance/extensions/webgl-experimental-compressed-textures.html
+++ /dev/null
@@ -1,520 +0,0 @@
-<!--
-Copyright (c) 2011 The Chromium Authors. All rights reserved.
-Use of this source code is governed by a BSD-style license that can be
-found in the LICENSE file.
- -->
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>WebGL WEBGL_EXPERIMENTAL_compressed_textures Conformance Tests</title>
-<link rel="stylesheet" href="../../resources/js-test-style.css"/>
-<style>
-img {
- border: 1px solid black;
- margin-right: 1em;
-}
-.testimages {
-}
-
-.testimages br {
-  clear: both;
-}
-
-.testimages > div {
-  float: left;
-  margin: 1em;
-}
-</style>
-<script src="../../resources/desktop-gl-constants.js" type="text/javascript"></script>
-<script src="../../resources/js-test-pre.js"></script>
-<script src="../resources/webgl-test.js"></script>
-<script src="../resources/webgl-test-utils.js"></script>
-<script src="compressed-textures/4x4.rgb.dxt1.js"></script>
-<script src="compressed-textures/4x4.rgba.dxt1.js"></script>
-<script src="compressed-textures/4x4.rgba.dxt5.js"></script>
-<script src="compressed-textures/8x8.rgb.dxt1.js"></script>
-<script src="compressed-textures/8x8.rgba.dxt1.js"></script>
-<script src="compressed-textures/8x8.rgba.dxt5.js"></script>
-<script src="compressed-textures/8x8.rgba.pvrtc4bpp.js"></script>
-</head>
-<body>
-<div id="description"></div>
-<canvas id="canvas" width="8" height="8" style="width: 8px; height: 8px;"></canvas>
-<div id="console"></div>
-<!-- Shaders for testing standard derivatives -->
-<script>
-description("This test verifies the functionality of the OES_vertex_array_object extension, if it is available.");
-
-debug("");
-
-var wtu = WebGLTestUtils;
-var canvas = document.getElementById("canvas");
-var gl = wtu.create3DContext(canvas, {antialias: false});
-var program = wtu.setupTexturedQuad(gl);
-var ext = null;
-var vao = null;
-var validFormats = {
-  COMPRESSED_RGB_S3TC_DXT1_EXT        : 0x83F0,
-  COMPRESSED_RGBA_S3TC_DXT1_EXT       : 0x83F1,
-  COMPRESSED_RGBA_S3TC_DXT5_EXT       : 0x83F3,
-  ETC1_RGB8_OES                       : 0x8D64,
-  COMPRESSED_RGB_PVRTC_4BPPV1_IMG     : 0x8C00,
-  COMPRESSED_RGBA_PVRTC_4BPPV1_IMG    : 0x8C02
-};
-var name;
-var supportedFormats;
-
-if (!gl) {
-  testFailed("WebGL context does not exist");
-} else {
-  testPassed("WebGL context exists");
-
-  // Run tests with extension disabled
-  runTestDisabled();
-
-  // Query the extension and store globally so shouldBe can access it
-  ext = gl.getExtension("WEBGL_EXPERIMENTAL_compressed_textures");
-  if (!ext) {
-    testPassed("No WEBGL_EXPERIMENTAL_compressed_textures support -- this is legal");
-    runSupportedTest(false);
-  } else {
-    testPassed("Successfully enabled WEBGL_EXPERIMENTAL_compressed_textures extension");
-
-    runSupportedTest(true);
-    runTestExtension();
-  }
-}
-
-function runSupportedTest(extensionEnabled) {
-  var supported = gl.getSupportedExtensions();
-  if (supported.indexOf("WEBGL_EXPERIMENTAL_compressed_textures") >= 0) {
-    if (extensionEnabled) {
-      testPassed("WEBGL_EXPERIMENTAL_compressed_textures listed as supported and getExtension succeeded");
-    } else {
-      testFailed("WEBGL_EXPERIMENTAL_compressed_textures listed as supported but getExtension failed");
-    }
-  } else {
-    if (extensionEnabled) {
-      testFailed("WEBGL_EXPERIMENTAL_compressed_textures not listed as supported but getExtension succeeded");
-    } else {
-      testPassed("WEBGL_EXPERIMENTAL_compressed_textures not listed as supported and getExtension failed -- this is legal");
-    }
-  }
-}
-
-
-function runTestDisabled() {
-  debug("Testing binding enum with extension disabled");
-
-  // Default value is null
-  if (gl.getParameter(gl.COMPRESSED_TEXTURE_FORMATS) === null) {
-    testPassed("Default value of COMPRESSED_TEXTURE_FORMATS is null");
-  } else {
-    testFailed("Default value of COMPRESSED_TEXTURE_FORMATS is not null");
-  }
-}
-
-function checkIsValidFormat(format) {
-  for (var name in validFormats) {
-    if (format == validFormats[name]) {
-      testPassed("supported format " + formatToString(format) + " is valid");
-      return;
-    }
-  }
-  testFailed("supported format " + formatToString(format) + " is not valid");
-}
-
-function formatToString(format) {
-  for (var p in ext) {
-    if (ext[p] == format) {
-      return p;
-    }
-  }
-  return "0x" + format.toString(16);
-}
-
-function runTestExtension() {
-  debug("Testing WEBGL_EXPERIMENTAL_compressed_textures");
-
-  // check that all format enums exist.
-  for (name in validFormats) {
-    var expected = "0x" + validFormats[name].toString(16);
-    var actual = "ext['" + name + "']";
-    shouldBe(actual, expected);
-  }
-
-  supportedFormats = gl.getParameter(gl.COMPRESSED_TEXTURE_FORMATS);
-  // Even if no formats are supported this should return an array.
-  shouldBeTrue("supportedFormats.length !== undefined");
-
-  // check that each format is an allowed format
-  for (var ii = 0; ii < supportedFormats.length; ++ii) {
-    checkIsValidFormat(supportedFormats[ii]);
-  }
-
-  // Test each format
-  for (var ii = 0; ii < supportedFormats.length; ++ii) {
-    switch (supportedFormats[ii]) {
-    case ext.COMPRESSED_RGB_S3TC_DXT1_EXT:
-      testDXT1_RGB();
-      break;
-    case ext.COMPRESSED_RGBA_S3TC_DXT1_EXT:
-      testDXT1_RGBA();
-      break;
-    case ext.COMPRESSED_RGBA_S3TC_DXT5_EXT:
-      testDXT5_RGBA();
-      break;
-    case ext.ETC1_RGB8_OES:
-      testETC1_RGB8();
-      break;
-    case ext.COMPRESSED_RGB_PVRTC_4BPPV1_IMG:
-      testPVRTC_RGB_4BPPV1();
-      break;
-    case ext.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG:
-      testPVRTC_RGBA_4BPPV1();
-      break;
-    }
-  }
-}
-
-function testDXT1_RGB() {
-  var tests = [
-    { width: 4,
-      height: 4,
-      channels: 3,
-      data: img_4x4_rgb_dxt1,
-      format: ext.COMPRESSED_RGB_S3TC_DXT1_EXT
-    },
-    { width: 8,
-      height: 8,
-      channels: 3,
-      data: img_8x8_rgb_dxt1,
-      format: ext.COMPRESSED_RGB_S3TC_DXT1_EXT
-    }
-  ];
-  testDXTTextures(tests);
-}
-
-function testDXT1_RGBA() {
-  var tests = [
-    { width: 4,
-      height: 4,
-      channels: 4,
-      data: img_4x4_rgba_dxt1,
-      format: ext.COMPRESSED_RGBA_S3TC_DXT1_EXT
-    },
-    { width: 8,
-      height: 8,
-      channels: 4,
-      data: img_8x8_rgba_dxt1,
-      format: ext.COMPRESSED_RGBA_S3TC_DXT1_EXT
-    }
-  ];
-  testDXTTextures(tests);
-}
-
-function testDXT5_RGBA() {
-  var tests = [
-    { width: 4,
-      height: 4,
-      channels: 4,
-      data: img_4x4_rgba_dxt5,
-      format: ext.COMPRESSED_RGBA_S3TC_DXT5_EXT
-    },
-    { width: 8,
-      height: 8,
-      channels: 4,
-      data: img_8x8_rgba_dxt5,
-      format: ext.COMPRESSED_RGBA_S3TC_DXT5_EXT
-    }
-  ];
-  testDXTTextures(tests);
-}
-
-function testETC1_RGB8() {
-  testFailed("ETC1 test not yet implemented");
-}
-
-function testPVRTC_RGB_4BPPV1() {
-  var tests = [
-    { width: 8,
-      height: 8,
-      channels: 4,
-      data: img_8x8_rgba_pvrtc4bpp,
-      format: ext.COMPRESSED_RGB_PVRTC_4BPPV1_IMG
-    }
-  ];
-  testPVRTCTextures(tests);
-}
-
-function testPVRTC_RGB_4BPPV1() {
-  var tests = [
-    { width: 8,
-      height: 8,
-      channels: 4,
-      data: img_8x8_rgba_pvrtc4bpp,
-      format: ext.COMPRESSED_RGBA_PVRTC_4BPPV1_IMG
-    }
-  ];
-  testPVRTCTextures(tests);
-}
-
-function testDXTTextures(tests) {
-  debug("<hr/>");
-  for (var ii = 0; ii < tests.length; ++ii) {
-    testDXTTexture(tests[ii]);
-  }
-}
-
-function uncompressDXTBlock(
-    destBuffer, destX, destY, destWidth, src, srcOffset, format) {
-  function make565(src, offset) {
-    return src[offset + 0] + src[offset + 1] * 256;
-  }
-  function make8888From565(c) {
-    return [
-        Math.floor(((c >> 11) & 0x1F) * 255 / 31),
-        Math.floor(((c >>  5) & 0x3F) * 255 / 63),
-        Math.floor(((c >>  0) & 0x1F) * 255 / 31),
-        255
-      ];
-  }
-  function mix(mult, c0, c1, div) {
-    var r = [];
-    for (var ii = 0; ii < c0.length; ++ii) {
-      r[ii] = Math.floor((c0[ii] * mult + c1[ii]) / div);
-    }
-    return r;
-  }
-  var colorOffset =
-      srcOffset + ((format == ext.COMPRESSED_RGBA_S3TC_DXT5_EXT) ? 8 : 0);
-  var color0 = make565(src, colorOffset + 0);
-  var color1 = make565(src, colorOffset + 2);
-  var c0gtc1 = color0 > color1 || format == ext.COMPRESSED_RGBA_S3TC_DXT5_EXT;
-  var rgba0 = make8888From565(color0);
-  var rgba1 = make8888From565(color1);
-  var colors = [
-      rgba0,
-      rgba1,
-      c0gtc1 ? mix(2, rgba0, rgba1, 3) : mix(1, rgba0, rgba1, 2),
-      c0gtc1 ? mix(2, rgba1, rgba0, 3) : [0, 0, 0, 255]
-    ];
-
-  // yea I know there is a lot of math in this inner loop.
-  // so sue me.
-  for (var yy = 0; yy < 4; ++yy) {
-    var pixels = src[colorOffset + 4 + yy];
-    for (var xx = 0; xx < 4; ++xx) {
-      var dstOff = ((destY + yy) * destWidth + destX + xx) * 4;
-      var code = (pixels >> (xx * 2)) & 0x3;
-      var srcColor = colors[code];
-      var alpha;
-      switch (format) {
-      case ext.COMPRESSED_RGB_S3TC_DXT1_EXT:
-        alpha = 255;
-        break;
-      case ext.COMPRESSED_RGBA_S3TC_DXT1_EXT:
-        alpha = (code == 3 && !c0gtc1) ? 0 : 255;
-        break;
-      case ext.COMPRESSED_RGBA_S3TC_DXT5_EXT:
-        {
-          var alpha0 = src[srcOffset + 0];
-          var alpha1 = src[srcOffset + 1];
-          var alphaOff = Math.floor(yy / 2) * 3 + 2;
-          var alphaBits =
-             src[srcOffset + alphaOff + 0] +
-             src[srcOffset + alphaOff + 1] * 256 +
-             src[srcOffset + alphaOff + 2] * 65536;
-          var alphaShift = (yy % 2) * 12 + xx * 3;
-          var alphaCode = (alphaBits >> alphaShift) & 0x7;
-          if (alpha0 > alpha1) {
-            switch (alphaCode) {
-            case 0:
-              alpha = alpha0;
-              break;
-            case 1:
-              alpha = alpha1;
-              break;
-            default:
-              alpha = ((8 - alphaCode) * alpha0 + (alphaCode - 1) * alpha1) / 7;
-              break;
-            }
-          } else {
-            switch (alphaCode) {
-            case 0:
-              alpha = alpha0;
-              break;
-            case 1:
-              alpha = alpha1;
-              break;
-            case 6:
-              alpha = 0;
-              break;
-            case 7:
-              alpha = 255;
-              break;
-            default:
-              alpha = ((6 - alphaCode) * alpha0 + (alphaCode - 1) * alpha1) / 5;
-              break;
-            }
-          }
-        }
-        break;
-      default:
-        throw "bad format";
-      }
-      destBuffer[dstOff + 0] = srcColor[0];
-      destBuffer[dstOff + 1] = srcColor[1];
-      destBuffer[dstOff + 2] = srcColor[2];
-      destBuffer[dstOff + 3] = alpha;
-    }
-  }
-}
-
-function uncompressDXT(width, height, data, format) {
-  if (width % 4 || height % 4) throw "bad width or height";
-
-  var dest = new Uint8Array(width * height * 4);
-  var blocksAcross = width / 4;
-  var blocksDown = height / 4;
-  var blockSize = (format == ext.COMPRESSED_RGBA_S3TC_DXT5_EXT ? 16 : 8);
-  for (var yy = 0; yy < blocksDown; ++yy) {
-    for (var xx = 0; xx < blocksAcross; ++xx) {
-      uncompressDXTBlock(
-        dest, xx * 4, yy * 4, width, data,
-        (yy * blocksAcross + xx) * blockSize, format);
-    }
-  }
-  return dest;
-}
-
-function testDXTTexture(test) {
-  var uncompressedData = uncompressDXT(
-      test.width, test.height, test.data, test.format);
-
-  var inner = 4; //test.width == 4 ? 4 : 1
-  for (var ii = 0; ii < inner; ++ii) {
-    var width = test.width - ii;
-    var height = test.height - ii;
-    canvas.width = width;
-    canvas.height = height;
-    gl.viewport(0, 0, width, height);
-    debug("testing " + formatToString(test.format) + " " +
-          width + "x" + height);
-    var tex = gl.createTexture();
-    gl.bindTexture(gl.TEXTURE_2D, tex);
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
-    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
-    ext.compressedTexImage2D(
-        gl.TEXTURE_2D, 0, test.format, width, height, 0,
-        new Uint8Array(test.data));
-    glErrorShouldBe(gl, gl.NO_ERROR, "uploading compressed texture");
-    wtu.drawQuad(gl);
-    compareRect(
-        width, height, test.channels, test.width, test.height, uncompressedData,
-        test.data, test.format);
-  }
-
-  gl.compressedTexImage2D(
-      gl.TEXTURE_2D, 0, test.format, width + 1, height, 0,
-      new Uint8Array(test.data));
-  glErrorShouldBe(
-      gl, gl.INVALID_OPERATION, "data size does not match dimensions");
-
-
-  // TODO: test compressedTexSubImage2D
-  // TODO: test invalid width, height, xoffset, yoffset
-}
-
-function insertImg(element, caption, img) {
-  var div = document.createElement("div");
-  div.appendChild(img);
-  var label = document.createElement("div");
-  label.appendChild(document.createTextNode(caption));
-  div.appendChild(label);
-  element.appendChild(div);
-}
-
-function makeImage(imageWidth, imageHeight, dataWidth, data, alpha) {
-  var scale = 8;
-  var c = document.createElement("canvas");
-  c.width = imageWidth * scale;
-  c.height = imageHeight * scale;
-  var ctx = c.getContext("2d");
-  for (var yy = 0; yy < imageWidth; ++yy) {
-    for (var xx = 0; xx < imageHeight; ++xx) {
-      var offset = (yy * dataWidth + xx) * 4;
-      ctx.fillStyle = "rgba(" +
-          data[offset + 0] + "," +
-          data[offset + 1] + "," +
-          data[offset + 2] + "," +
-          (alpha ? data[offset + 3] / 255 : 1) + ")";
-      ctx.fillRect(xx * scale, yy * scale, scale, scale);
-    }
-  }
-  var img = document.createElement("img");
-  img.src = c.toDataURL();
-  return img;
-}
-function compareRect(
-    actualWidth, actualHeight, actualChannels,
-    dataWidth, dataHeight, expectedData,
-    testData, testFormat) {
-  var actual = new Uint8Array(actualWidth * actualHeight * 4);
-  gl.readPixels(
-      0, 0, actualWidth, actualHeight, gl.RGBA, gl.UNSIGNED_BYTE, actual);
-
-  var div = document.createElement("div");
-  div.className = "testimages";
-  insertImg(div, "expected", makeImage(
-      actualWidth, actualHeight, dataWidth, expectedData,
-      actualChannels == 4));
-  insertImg(div, "actual", makeImage(
-      actualWidth, actualHeight, actualWidth, actual,
-      actualChannels == 4));
-  div.appendChild(document.createElement('br'));
-  document.getElementById("console").appendChild(div);
-
-  var failed = false;
-  for (var yy = 0; yy < actualHeight; ++yy) {
-    for (var xx = 0; xx < actualWidth; ++xx) {
-      var actualOffset = (yy * actualWidth + xx) * 4;
-      var expectedOffset = (yy * dataWidth + xx) * 4;
-      var expected = [
-          expectedData[expectedOffset + 0],
-          expectedData[expectedOffset + 1],
-          expectedData[expectedOffset + 2],
-          (actualChannels == 3 ? 255 : expectedData[expectedOffset + 3])
-      ];
-      for (var jj = 0; jj < 4; ++jj) {
-        if (actual[actualOffset + jj] != expected[jj]) {
-          failed = true;
-          var was = actual[actualOffset + 0].toString();
-          for (j = 1; j < 4; ++j) {
-            was += "," + actual[actualOffset + j];
-          }
-          testFailed('at (' + xx + ', ' + yy +
-                     ') expected: ' + expected + ' was ' + was);
-        }
-      }
-    }
-  }
-  if (!failed) {
-    testPassed("texture rendered correctly");
-  }
-}
-
-function testPVRTCTextures() {
-  testFailed("PVRTC test not yet implemented");
-}
-
-debug("");
-successfullyParsed = true;
-</script>
-<script src="../../resources/js-test-post.js"></script>
-
-</body>
-</html>
diff --git a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-acos.html b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-acos.html
index 79224384c727..5deaf3670ce5 100644
--- a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-acos.html
+++ b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-acos.html
@@ -26,44 +26,65 @@ var piConstants = [
   "const float k2PI    = (kPI * 2.0);"
 ].join("\n");
 
-var asinImplementation = [
-  "float asin_impl(float v) {",
-  "  return v + (1.0 / 2.0) * pow(v, 3.0) / 3.0 +",
-  "             ((1.0 * 3.0) / (2.0 * 4.0)) * pow(v, 5.0) / 5.0 +",
-  "             ((1.0 * 3.0 * 5.0) / (2.0 * 4.0 * 6.0)) * pow(v, 7.0) / 7.0 +",
-  "             ((1.0 * 3.0 * 5.0 * 7.0) / (2.0 * 4.0 * 6.0 * 8.0)) * pow(v, 9.0) / 9.0;",
-  "}"
-].join("\n");
+var kPI = Math.PI;
+var kHalfPI = Math.PI * 0.5;
+var k2PI = Math.PI * 2.0;
+var acos = Math.acos;  // shorthand
 
-GLSLGenerator.runFeatureTest({
+GLSLGenerator.runReferenceImageTest({
   feature: "acos",
   args: "$(type) value",
-  baseArgs: "value$(field)",
   testFunc: "$(func)($(type))",
-  emuFunc: [
-    asinImplementation,
-    "float $(func)_base(float value) {",
-    "  return kHalfPI - asin_impl(value);",
-    "}"
-  ].join("\n"),
   gridRes: 8,
-  tolerance: 8,
+  tolerance: 2,
   extra: piConstants,
   tests: [
-    ["$(output) = vec4(",
-     "    $(func)($(input).x * 0.8) / kPI,",
-     "    $(func)($(input).y * 0.8) / kPI,",
-     "    0,",
-     "    1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xy * 0.8) / kPI,",
-     "    0, 1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xyz * 0.8) / kPI,",
-     "    1);"].join("\n"),
-    ["$(output) = ",
-     "    $(func)($(input) * 0.8) / kPI;",
-    ].join("\n")
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).x * 0.8) / kPI,",
+               "    $(func)($(input).y * 0.8) / kPI,",
+               "    0,",
+               "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ acos(x * 0.8) / kPI,
+                 acos(y * 0.8) / kPI,
+                 0,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).xy * 0.8) / kPI,",
+               "    0, 1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ acos(x * 0.8) / kPI,
+                 acos(y * 0.8) / kPI,
+                 0,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).xyz * 0.8) / kPI,",
+               "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ acos(x * 0.8) / kPI,
+                 acos(y * 0.8) / kPI,
+                 acos(z * 0.8) / kPI,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = ",
+               "    $(func)($(input) * 0.8) / kPI;",
+              ].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ acos(x * 0.8) / kPI,
+                 acos(y * 0.8) / kPI,
+                 acos(z * 0.8) / kPI,
+                 acos(w * 0.8) / kPI ];
+      },
+    },
   ]
 });
 successfullyParsed = true;
diff --git a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-asin.html b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-asin.html
index e2fce7e0e29b..8713b298cd60 100644
--- a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-asin.html
+++ b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-asin.html
@@ -26,44 +26,65 @@ var piConstants = [
   "const float k2PI    = (kPI * 2.0);"
 ].join("\n");
 
-var asinImplementation = [
-  "float asin_impl(float v) {",
-  "  return v + (1.0 / 2.0) * pow(v, 3.0) / 3.0 +",
-  "             ((1.0 * 3.0) / (2.0 * 4.0)) * pow(v, 5.0) / 5.0 +",
-  "             ((1.0 * 3.0 * 5.0) / (2.0 * 4.0 * 6.0)) * pow(v, 7.0) / 7.0 +",
-  "             ((1.0 * 3.0 * 5.0 * 7.0) / (2.0 * 4.0 * 6.0 * 8.0)) * pow(v, 9.0) / 9.0;",
-  "}"
-].join("\n");
+var kPI = Math.PI;
+var kHalfPI = Math.PI * 0.5;
+var k2PI = Math.PI * 2.0;
+var asin = Math.asin;  // shorthand
 
-GLSLGenerator.runFeatureTest({
+GLSLGenerator.runReferenceImageTest({
   feature: "asin",
   args: "$(type) value",
-  baseArgs: "value$(field)",
   testFunc: "$(func)($(type))",
-  emuFunc: [
-    asinImplementation,
-    "float $(func)_base(float value) {",
-    "  return asin_impl(value);",
-    "}"
-  ].join("\n"),
   gridRes: 8,
   tolerance: 2,
   extra: piConstants,
   tests: [
-    ["$(output) = vec4(",
-     "    $(func)($(input).x * 0.8) / kPI + 0.5,",
-     "    $(func)($(input).y * 0.8) / kPI + 0.5,",
-     "    0,",
-     "    1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xy * 0.8) / kPI + 0.5,",
-     "    0, 1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xyz * 0.8) / kPI + 0.5,",
-     "    1);"].join("\n"),
-    ["$(output) = ",
-     "    $(func)($(input) * 0.8) / kPI + 0.5;",
-    ].join("\n")
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).x * 0.8) / kPI + 0.5,",
+               "    $(func)($(input).y * 0.8) / kPI + 0.5,",
+               "    0,",
+               "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ asin(x * 0.8) / kPI + 0.5,
+                 asin(y * 0.8) / kPI + 0.5,
+                 0,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).xy * 0.8) / kPI + 0.5,",
+               "    0, 1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ asin(x * 0.8) / kPI + 0.5,
+                 asin(y * 0.8) / kPI + 0.5,
+                 0,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).xyz * 0.8) / kPI + 0.5,",
+               "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ asin(x * 0.8) / kPI + 0.5,
+                 asin(y * 0.8) / kPI + 0.5,
+                 asin(z * 0.8) / kPI + 0.5,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = ",
+               "    $(func)($(input) * 0.8) / kPI + 0.5;",
+              ].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ asin(x * 0.8) / kPI + 0.5,
+                 asin(y * 0.8) / kPI + 0.5,
+                 asin(z * 0.8) / kPI + 0.5,
+                 asin(w * 0.8) / kPI + 0.5 ];
+      },
+    },
   ]
 });
 successfullyParsed = true;
diff --git a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-atan-xy.html b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-atan-xy.html
index f587991217ed..e3fd62ee3100 100644
--- a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-atan-xy.html
+++ b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-atan-xy.html
@@ -26,75 +26,68 @@ var piConstants = [
   "const float k2PI    = (kPI * 2.0);"
 ].join("\n");
 
-var atanImplementation = [
-  "const float kEpsilon = 0.0001;",
-  "",
-  "float atan_impl(float y, float x) {",
-  "  float atan_value = 0.0;",
-  "  float scale = 1.0;",
-  "  float sign = 1.0;",
-  "",
-  "  if (x > kEpsilon || abs(y) > kEpsilon) {",
-  "    if (x < 0.0 ^^ y < 0.0) {",
-  "      sign = -1.0;",
-  "    }",
-  "",
-  "    bool y_gt_x = abs(y) < abs(x);",
-  "    float value = y_gt_x ? abs(y / x) : abs(x / y);",
-  "",
-  "    // Use Taylors series expansion for atan",
-  "    for(int ii = 1; ii < 8; ii += 2) {",
-  "      atan_value += scale * pow(value, float(ii)) / float(ii);",
-  "      scale = -scale;",
-  "    }",
-  "",
-  "    atan_value = (y_gt_x) ? sign * atan_value : sign * (kHalfPI - atan_value);",
-  "  }",
-  "",
-  "  if (x < 0.0) {",
-  "    if (y < 0.0) {",
-  "      atan_value -= kHalfPI;",
-  "    } else if (y > 0.0) {",
-  "      atan_value += kHalfPI;",
-  "    }",
-  "  }",
-  "",
-  "  return atan_value;",
-  "}"
-].join("\n");
+var kPI = Math.PI;
+var kHalfPI = Math.PI * 0.5;
+var k2PI = Math.PI * 2.0;
+var atan2 = Math.atan2;  // shorthand
 
-GLSLGenerator.runFeatureTest({
+GLSLGenerator.runReferenceImageTest({
   feature: "atan",
   args: "$(type) y, $(type) x",
-  baseArgs: "y$(field), x$(field)",
   testFunc: "$(func)($(type), $(type))",
-  emuFunc: [
-    atanImplementation,
-    "float $(func)_base(float y, float x) {",
-    "  return atan_impl(y, x);",
-    "}"
-  ].join("\n"),
   gridRes: 8,
-  tolerance: 4,
+  tolerance: 5,
   extra: piConstants,
   tests: [
-    ["$(output) = vec4(",
-     "    $(func)($(input).x + 0.1, $(input).y) / k2PI + 0.5,",
-     "    0,",
-     "    0,",
-     "    1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xy + vec2(0.1, 0.1), $(input).yx) / ",
-     "            k2PI + vec2(0.5, 0.5),",
-     "    0, 1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xyz + vec3(0.1, 0.1, 0.1), $(input).yzx) / ",
-     "            k2PI + vec3(0.5, 0.5, 0.5),",
-     "    1);"].join("\n"),
-    ["$(output) = ",
-     "    $(func)($(input) + vec4(0.1, 0.1, 0.1, 0.1), $(input).wzyx) / ",
-     "            k2PI + vec4(0.5, 0.5, 0.5, 0.5);",
-    ].join("\n")
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).x + 0.1, $(input).y) / k2PI + 0.5,",
+               "    0,",
+               "    0,",
+               "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ atan2(x + 0.1, y) / k2PI + 0.5,
+                 0,
+                 0,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).xy + vec2(0.1, 0.1), $(input).yx) / ",
+               "            k2PI + vec2(0.5, 0.5),",
+               "    0, 1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ atan2(x + 0.1, y) / k2PI + 0.5,
+                 atan2(y + 0.1, x) / k2PI + 0.5,
+                 0,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).xyz + vec3(0.1, 0.1, 0.1), $(input).yzx) / ",
+               "            k2PI + vec3(0.5, 0.5, 0.5),",
+               "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ atan2(x + 0.1, y) / k2PI + 0.5,
+                 atan2(y + 0.1, z) / k2PI + 0.5,
+                 atan2(z + 0.1, x) / k2PI + 0.5,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = ",
+               "    $(func)($(input) + vec4(0.1, 0.1, 0.1, 0.1), $(input).wzyx) / ",
+               "            k2PI + vec4(0.5, 0.5, 0.5, 0.5);",
+              ].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ atan2(x + 0.1, w) / k2PI + 0.5,
+                 atan2(y + 0.1, z) / k2PI + 0.5,
+                 atan2(z + 0.1, y) / k2PI + 0.5,
+                 atan2(w + 0.1, x) / k2PI + 0.5 ];
+      },
+    },
   ]
 });
 successfullyParsed = true;
diff --git a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-atan.html b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-atan.html
index 37dbe1eedf10..574f95982380 100644
--- a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-atan.html
+++ b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-atan.html
@@ -26,59 +26,65 @@ var piConstants = [
   "const float k2PI    = (kPI * 2.0);"
 ].join("\n");
 
-var atanImplementation = [
-  "float atan_impl(float value) {",
-  "  float atan_value = 0.0;",
-  "  float scale = 1.0;",
-  "  float sign = 1.0;",
-  "",
-  "  if (value < 0.0) {",
-  "    sign = -1.0;",
-  "    value = -value;",
-  "  }",
-  "",
-  "  bool value_le_1 = value <= 1.0;",
-  "  value = value_le_1 ? value : 1.0 / value;",
-  "",
-  "  // Use Taylors series expansion for atan",
-  "  for(int ii = 1; ii < 8; ii += 2) {",
-  "    atan_value += scale * pow(value, float(ii)) / float(ii);",
-  "    scale = -scale;",
-  "  }",
-  "",
-  "  return value_le_1 ? sign * atan_value : sign * (kHalfPI - atan_value);",
-  "}",
-].join("\n");
+var kPI = Math.PI;
+var kHalfPI = Math.PI * 0.5;
+var k2PI = Math.PI * 2.0;
+var atan = Math.atan;  // shorthand
 
-GLSLGenerator.runFeatureTest({
+GLSLGenerator.runReferenceImageTest({
   feature: "atan",
   args: "$(type) value",
-  baseArgs: "value$(field)",
   testFunc: "$(func)($(type))",
-  emuFunc: [
-    atanImplementation,
-    "",
-    "#define $(func)_base(value) atan_impl(value)"
-  ].join("\n"),
   gridRes: 8,
   tolerance: 4,
   extra: piConstants,
   tests: [
-    ["$(output) = vec4(",
-     "    $(func)($(input).x * 8.0 - 4.0) / k2PI + 0.5,",
-     "    0.5,",
-     "    0,",
-     "    1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xy * 8.0 - vec2(4, 4)) / k2PI + vec2(0.5, 0.5),",
-     "    0, 1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xyz * 8.0 - vec3(4, 4, 4)) / k2PI + vec3(0.5, 0.5, 0.5),",
-
-     "    1);"].join("\n"),
-    ["$(output) = ",
-     "    $(func)($(input) * 8.0 - vec4(4, 4, 4, 4)) / k2PI + vec4(0.5, 0.5, 0.5, 0.5);",
-    ].join("\n")
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).x * 8.0 - 4.0) / k2PI + 0.5,",
+               "    0.5,",
+               "    0,",
+               "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ atan(x * 8.0 - 4.0) / k2PI + 0.5,
+                 0.5,
+                 0,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).xy * 8.0 - vec2(4, 4)) / k2PI + vec2(0.5, 0.5),",
+               "    0, 1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ atan(x * 8.0 - 4) / k2PI + 0.5,
+                 atan(y * 8.0 - 4) / k2PI + 0.5,
+                 0,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).xyz * 8.0 - vec3(4, 4, 4)) / k2PI + vec3(0.5, 0.5, 0.5),",
+               "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ atan(x * 8.0 - 4) / k2PI + 0.5,
+                 atan(y * 8.0 - 4) / k2PI + 0.5,
+                 atan(z * 8.0 - 4) / k2PI + 0.5,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = ",
+               "    $(func)($(input) * 8.0 - vec4(4, 4, 4, 4)) / k2PI + vec4(0.5, 0.5, 0.5, 0.5);",
+              ].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ atan(x * 8.0 - 4) / k2PI + 0.5,
+                 atan(y * 8.0 - 4) / k2PI + 0.5,
+                 atan(z * 8.0 - 4) / k2PI + 0.5,
+                 atan(w * 8.0 - 4) / k2PI + 0.5 ];
+      },
+    },
   ]
 });
 successfullyParsed = true;
diff --git a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-cos.html b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-cos.html
index 5281a1266dda..06557572b023 100644
--- a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-cos.html
+++ b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-cos.html
@@ -26,53 +26,69 @@ var piConstants = [
   "const float k2PI    = (kPI * 2.0);"
 ].join("\n");
 
-var sinImplementation = [
-  "",
-  "float sin_impl(float value) {",
-  "    value = mod(value + k2PI * 10.0, k2PI);",          // only positive values for now
-  "    int quad = int(floor(value / kHalfPI));",          // figure out which quad
-  "    float p = mod(value, kHalfPI);",                   // from 0.0 to PI/2
-  "    if (quad == 1 || quad == 3) { p = kHalfPI - p; }", // backward in quads 1,3
-  "    float c = p - ",
-  "              pow(p, 3.0) / (1.0 * 2.0 * 3.0) + ",
-  "              pow(p, 5.0) / (1.0 * 2.0 * 3.0 * 4.0 * 5.0) - ",
-  "              pow(p, 7.0) / (1.0 * 2.0 * 3.0 * 4.0 * 5.0 * 6.0 * 7.0);",
-  "    if (quad == 2 || quad == 3) { c = -c; }",
-  "    return c;",
-  "}"
-].join('\n');
+var kPI = Math.PI;
+var kHalfPI = Math.PI * 0.5;
+var k2PI = Math.PI * 2.0;
+var cos = Math.cos;  // shorthand
 
-GLSLGenerator.runFeatureTest({
+GLSLGenerator.runReferenceImageTest({
   feature: "cos",
   args: "$(type) value",
-  baseArgs: "value$(field)",
   testFunc: "$(func)($(type))",
-  emuFunc: [
-    sinImplementation,
-    "float $(func)_base(float value) {",
-    "  return sin_impl(value + kHalfPI);",
-    "}"
-  ].join("\n"),
   gridRes: 8,
   tolerance: 2,
   extra: piConstants,
   tests: [
-    ["$(output) = vec4(",
-     "    $(func)($(input).x * kHalfPI + kHalfPI),",
-     "    $(func)($(input).y * kHalfPI),",
-     "    0,",
-     "    1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xy * vec2(kPI, k2PI)) * 0.5 + vec2(0.5, 0.5),",
-     "    0, 1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xyz * vec3(kPI, k2PI, 4.0)) * ",
-     "    0.5 + vec3(0.5, 0.5, 0.5),",
-     "    1);"].join("\n"),
-    ["$(output) = ",
-     "    $(func)($(input) * vec4(k2PI, 4.0, kHalfPI, kPI)) *",
-     "    0.5 + vec4(0.5, 0.5, 0.5, 1);",
-    ].join("\n")
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).x * kHalfPI + kHalfPI),",
+               "    $(func)($(input).y * kHalfPI),",
+               "    0,",
+               "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+	return [ cos(x * kHalfPI + kHalfPI),
+		 cos(y * kHalfPI),
+		 0,
+		 1 ];
+      },
+    },
+    {
+      source: ["$(output) = vec4(",
+	       "    $(func)($(input).xy * vec2(kPI, k2PI)) * 0.5 + vec2(0.5, 0.5),",
+	       "    0, 1);"].join("\n"),
+      generator: function(x, y, z, w) {
+	return [ cos(x * kPI) * 0.5 + 0.5,
+		 cos(y * k2PI) * 0.5 + 0.5,
+		 0,
+		 1 ];
+      },
+    },
+    {
+      // FIXME: for some reason, this test requires a higher tolerance when run in a vertex shader.
+      source: ["$(output) = vec4(",
+	       "    $(func)($(input).xyz * vec3(kPI, k2PI, 4.0)) * ",
+	       "    0.5 + vec3(0.5, 0.5, 0.5),",
+	       "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+	return [ cos(x * kPI) * 0.5 + 0.5,
+		 cos(y * k2PI) * 0.5 + 0.5,
+		 cos(z * 4.0) * 0.5 + 0.5,
+		 1 ];
+      },
+      tolerance: 7,
+    },
+    {
+      source: ["$(output) = ",
+	       "    $(func)($(input) * vec4(k2PI, 4.0, kHalfPI, kPI)) *",
+	       "    0.5 + vec4(0.5, 0.5, 0.5, 1);",
+	      ].join("\n"),
+      generator: function(x, y, z, w) {
+	return [ cos(x * k2PI) * 0.5 + 0.5,
+		 cos(y * 4.0) * 0.5 + 0.5,
+		 cos(z * kHalfPI) * 0.5 + 0.5,
+		 cos(w * kPI) * 0.5 + 1.0 ];
+      },
+    },
   ]
 });
 successfullyParsed = true;
diff --git a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-sin.html b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-sin.html
index f5238bf7fa7e..8cdb015a683a 100644
--- a/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-sin.html
+++ b/content/canvas/test/webgl/conformance/glsl/functions/glsl-function-sin.html
@@ -26,57 +26,70 @@ var piConstants = [
   "const float k2PI    = (kPI * 2.0);"
 ].join("\n");
 
-var sinImplementation = [
-  "",
-  "float sin_impl(float value) {",
-  "    value = mod(value + k2PI * 10.0, k2PI);",          // only positive values for now
-  "    int quad = int(floor(value / kHalfPI));",          // figure out which quad
-  "    float p = mod(value, kHalfPI);",                   // from 0.0 to PI/2
-  "    if (quad == 1 || quad == 3) { p = kHalfPI - p; }", // backward in quads 1,3
-  "    float c = p - ",
-  "              pow(p, 3.0) / (1.0 * 2.0 * 3.0) + ",
-  "              pow(p, 5.0) / (1.0 * 2.0 * 3.0 * 4.0 * 5.0) - ",
-  "              pow(p, 7.0) / (1.0 * 2.0 * 3.0 * 4.0 * 5.0 * 6.0 * 7.0);",
-  "    if (quad == 2 || quad == 3) { c = -c; }",
-  "    return c;",
-  "}"
-].join('\n');
+var kPI = Math.PI;
+var kHalfPI = Math.PI * 0.5;
+var k2PI = Math.PI * 2.0;
+var sin = Math.sin;  // shorthand
 
-GLSLGenerator.runFeatureTest({
+GLSLGenerator.runReferenceImageTest({
   feature: "sin",
   args: "$(type) value",
-  baseArgs: "value$(field)",
   testFunc: "$(func)($(type))",
-  emuFunc: [
-    sinImplementation,
-    "float $(func)_base(float value) {",
-    "  return sin_impl(value);",
-    "}"
-  ].join("\n"),
   gridRes: 8,
-  tolerance: 2,
+  tolerance: 4,
   extra: piConstants,
   tests: [
-    ["$(output) = vec4(",
-     "    $(func)($(input).x * kHalfPI + kHalfPI),",
-     "    $(func)($(input).y * kHalfPI),",
-     "    0,",
-     "    1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xy * vec2(kPI, k2PI)) * 0.5 + vec2(0.5, 0.5),",
-     "    0, 1);"].join("\n"),
-    ["$(output) = vec4(",
-     "    $(func)($(input).xyz * vec3(kPI, k2PI, 4.0)) * ",
-     "    0.5 + vec3(0.5, 0.5, 0.5),",
-     "    1);"].join("\n"),
-    ["$(output) = ",
-     "    $(func)($(input) * vec4(k2PI, 4.0, kHalfPI, kPI)) *",
-     "    0.5 + vec4(0.5, 0.5, 0.5, 1);",
-    ].join("\n")
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).x * kHalfPI + kHalfPI),",
+               "    $(func)($(input).y * kHalfPI),",
+               "    0,",
+               "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ sin(x * kHalfPI + kHalfPI),
+                 sin(y * kHalfPI),
+                 0,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).xy * vec2(kPI, k2PI)) * 0.5 + vec2(0.5, 0.5),",
+               "    0, 1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ sin(x * kPI) * 0.5 + 0.5,
+                 sin(y * k2PI) * 0.5 + 0.5,
+                 0,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = vec4(",
+               "    $(func)($(input).xyz * vec3(kPI, k2PI, 4.0)) * ",
+               "    0.5 + vec3(0.5, 0.5, 0.5),",
+               "    1);"].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ sin(x * kPI) * 0.5 + 0.5,
+                 sin(y * k2PI) * 0.5 + 0.5,
+                 sin(z * 4.0) * 0.5 + 0.5,
+                 1 ];
+      },
+    },
+    {
+      source: ["$(output) = ",
+               "    $(func)($(input) * vec4(k2PI, 4.0, kHalfPI, kPI)) *",
+               "    0.5 + vec4(0.5, 0.5, 0.5, 1);",
+              ].join("\n"),
+      generator: function(x, y, z, w) {
+        return [ sin(x * k2PI) * 0.5 + 0.5,
+                 sin(y * 4.0) * 0.5 + 0.5,
+                 sin(z * kHalfPI) * 0.5 + 0.5,
+                 sin(w * kPI) * 0.5 + 1 ];
+      },
+    },
   ]
 });
 successfullyParsed = true;
 </script>
 </body>
 </html>
-
diff --git a/content/canvas/test/webgl/conformance/glsl/implicit/add_int_float.vert.html b/content/canvas/test/webgl/conformance/glsl/implicit/add_int_float.vert.html
index 35066ac5ad87..395634d769e3 100644
--- a/content/canvas/test/webgl/conformance/glsl/implicit/add_int_float.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/implicit/add_int_float.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat2.vert.html b/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat2.vert.html
index 2aa8b3596b47..ebb3b4deef8d 100644
--- a/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat2.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat2.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat3.vert.html b/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat3.vert.html
index b156d18a89b4..5f55e528ea3f 100644
--- a/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat3.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat3.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat4.vert.html b/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat4.vert.html
index 97cdf8a55d86..ca894e135e0a 100644
--- a/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat4.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/implicit/add_int_mat4.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/implicit/add_int_vec2.vert.html b/content/canvas/test/webgl/conformance/glsl/implicit/add_int_vec2.vert.html
index 3faace53e66a..eff4cd124e52 100644
--- a/content/canvas/test/webgl/conformance/glsl/implicit/add_int_vec2.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/implicit/add_int_vec2.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
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index 56dcb4930bc2..6423b2dd85c0 100644
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index e2d8f44100f2..e39c580edf19 100644
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 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
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index da83ab290fb1..d298a759c4a0 100644
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 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index fda408b76edf..2c61babf7212 100644
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 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
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index 428dc9680da3..52d1f1effb95 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 8adb7cc82f7e..ee34cddea326 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 661951174cb4..d9fceb45572e 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
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index 71af7122a0ec..98b1c05a7b55 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
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index 525325a7e41c..db6b60393804 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
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index 28ac1c768029..6e4ce2f1a1ae 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/implicit/subtract_ivec3_vec3.vert.html b/content/canvas/test/webgl/conformance/glsl/implicit/subtract_ivec3_vec3.vert.html
index fd9dc59f0efe..e399dcecb254 100644
--- a/content/canvas/test/webgl/conformance/glsl/implicit/subtract_ivec3_vec3.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/implicit/subtract_ivec3_vec3.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/implicit/subtract_ivec4_vec4.vert.html b/content/canvas/test/webgl/conformance/glsl/implicit/subtract_ivec4_vec4.vert.html
index 769efd95cd0c..28393dad460f 100644
--- a/content/canvas/test/webgl/conformance/glsl/implicit/subtract_ivec4_vec4.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/implicit/subtract_ivec4_vec4.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/implicit/ternary_int_float.vert.html b/content/canvas/test/webgl/conformance/glsl/implicit/ternary_int_float.vert.html
index 0a7c1d251925..7a878815f6be 100644
--- a/content/canvas/test/webgl/conformance/glsl/implicit/ternary_int_float.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/implicit/ternary_int_float.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec2_vec2.vert.html b/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec2_vec2.vert.html
index 73be979e1b68..06f590b7cc55 100644
--- a/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec2_vec2.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec2_vec2.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec3_vec3.vert.html b/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec3_vec3.vert.html
index 7b0306c94eb1..abd12cf01e46 100644
--- a/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec3_vec3.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec3_vec3.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec4_vec4.vert.html b/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec4_vec4.vert.html
index 55dffc4c7df8..d0e2fb2615b1 100644
--- a/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec4_vec4.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/implicit/ternary_ivec4_vec4.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/00_test_list.txt b/content/canvas/test/webgl/conformance/glsl/misc/00_test_list.txt
index f87259c59aad..76984b33908a 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/00_test_list.txt
+++ b/content/canvas/test/webgl/conformance/glsl/misc/00_test_list.txt
@@ -3,10 +3,11 @@ embedded-struct-definitions-forbidden.html
 # this test is intentionally disabled as it is too strict and to hard to simulate
 # glsl-2types-of-textures-on-same-unit.html
 glsl-function-nodes.html
+--min-version 1.0.2 glsl-vertex-branch.html
 glsl-long-variable-names.html
 non-ascii-comments.vert.html
 non-ascii.vert.html
-
+--min-version 1.0.2 re-compile-re-link.html
 shader-with-256-character-identifier.frag.html
 shader-with-257-character-identifier.frag.html
 shader-with-_webgl-identifier.vert.html
@@ -31,6 +32,8 @@ shader-with-frag-depth.frag.html
 shader-with-function-recursion.frag.html
 --min-version 1.0.2 shader-with-function-scoped-struct.html
 --min-version 1.0.2 shader-with-functional-scoping.html
+--min-version 1.0.2 shader-with-comma-assignment.html
+--min-version 1.0.2 shader-with-comma-conditional-assignment.html
 shader-with-glcolor.vert.html
 shader-with-gles-1.frag.html
 shader-with-gles-symbol.frag.html
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/attrib-location-length-limits.html b/content/canvas/test/webgl/conformance/glsl/misc/attrib-location-length-limits.html
index 4a83af1dc906..7cb7b6b80aa0 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/attrib-location-length-limits.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/attrib-location-length-limits.html
@@ -4,6 +4,7 @@
 <meta charset="utf-8">
 <title>WebGL attrib location length tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test.js"> </script>
 <script src="../../resources/webgl-test-utils.js"> </script>
@@ -46,7 +47,7 @@ if (window.initNonKhronosFramework) {
 description("test attrib location length limit");
 
 var wtu = WebGLTestUtils;
-var gl = wtu.create3DContext(document.getElementById("example"));
+var gl = wtu.create3DContext("example");
 
 debug("Test attrib location underneath the length limit");
 var program = wtu.loadProgramFromScript(gl, "goodVertexShader", "fragmentShader");
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/embedded-struct-definitions-forbidden.html b/content/canvas/test/webgl/conformance/glsl/misc/embedded-struct-definitions-forbidden.html
index 0e72d6edd09c..9387c946c0b0 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/embedded-struct-definitions-forbidden.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/embedded-struct-definitions-forbidden.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/glsl-function-nodes.html b/content/canvas/test/webgl/conformance/glsl/misc/glsl-function-nodes.html
index c2136aa51756..bb6c371e9e15 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/glsl-function-nodes.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/glsl-function-nodes.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>GLSL function nodes Test</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test.js"> </script>
 <script src="../../resources/webgl-test-utils.js"> </script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/glsl-vertex-branch.html b/content/canvas/test/webgl/conformance/glsl/misc/glsl-vertex-branch.html
new file mode 100644
index 000000000000..8983bfa1c209
--- /dev/null
+++ b/content/canvas/test/webgl/conformance/glsl/misc/glsl-vertex-branch.html
@@ -0,0 +1,130 @@
+<!--
+Copyright (c) 2011 The Chromium Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+ -->
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>GLSL function nodes Test</title>
+<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
+<script src="../../../resources/js-test-pre.js"></script>
+<script src="../../resources/webgl-test.js"> </script>
+<script src="../../resources/webgl-test-utils.js"> </script>
+
+<script id="vshaderNoBranch", type="x-shader/x-vertex">
+attribute vec3 aPosition;
+uniform float redIntensity;
+
+varying vec4 vColor;
+
+float MADBug(float paramValue) {
+  float localVar = 1.0;
+  return 0.25 * ceil(localVar) + paramValue;
+}
+
+void main(void) {
+    gl_Position = vec4(aPosition, 1.0);
+    vColor = vec4(MADBug(redIntensity), 0., 0., 1.);
+}
+</script>
+
+<script id="vshaderBranch", type="x-shader/x-vertex">
+attribute vec3 aPosition;
+uniform float redIntensity;
+
+varying vec4 vColor;
+
+float MADBug(float paramValue) {
+  float localVar = 1.0;
+  return 0.25 * ceil(localVar) + paramValue;
+}
+
+void main(void) {
+    float condition = 42.;
+    if (condition == 0.) {}
+    gl_Position = vec4(aPosition, 1.0);
+    vColor = vec4(MADBug(redIntensity), 0., 0., 1.);
+}
+</script>
+
+<script id="fshader", type="x-shader/x-fragment">
+#if defined(GL_ES)
+precision mediump float;
+#endif
+varying vec4 vColor;
+void main()
+{
+   gl_FragColor = vColor;
+}
+</script>
+</head>
+<body>
+<canvas id="canvasNoBranch" width="50" height="50"></canvas>
+<canvas id="canvasBranch" width="50" height="50"></canvas>
+<div id="description">This tests against a Mac driver bug related to branches
+ inside of Vertex Shaders.</div>
+<div id="console"></div>
+<script>
+var width = 50;
+var height = 50;
+
+function drawAndRead(canvasID, vshaderID, buffer)
+{
+    var gl = initWebGL(canvasID, vshaderID, "fshader", ["aPosition"], [0, 0, 0, 1], 1);
+    var vertexObject = gl.createBuffer();
+    gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
+    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ 0,0.5,0, -1,-1,0, 1,-1,0 ]), gl.STATIC_DRAW);
+    gl.enableVertexAttribArray(0);
+    gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0);
+
+    var loc = gl.getUniformLocation(gl.program, "redIntensity");
+    gl.uniform1f(loc, 0.75);
+    gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
+    gl.drawArrays(gl.TRIANGLES, 0, 3);
+    gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, buffer);
+    if (gl.getError() != gl.NO_ERROR)
+        return false;
+    return true;
+}
+
+function compareRendering(buffer1, buffer2, tol)
+{
+    for (var i = 0; i < width * height * 4; ++i) {
+        if (Math.abs(buffer1[i] - buffer2[i]) > tol)
+            return false;
+    }
+    return true;
+}
+
+function init()
+{
+    if (window.initNonKhronosFramework) {
+        window.initNonKhronosFramework(false);
+    }
+
+    description("tests vertex shader with branch");
+
+    var bufBranch = new Uint8Array(width * height * 4);
+    var bufNoBranch = new Uint8Array(width * height * 4);
+
+    if (drawAndRead("canvasBranch", "vshaderBranch", bufBranch) == false ||
+        drawAndRead("canvasNoBranch", "vshaderNoBranch", bufNoBranch) == false) {
+        testFailed("Setup failed");
+    } else {
+        if (compareRendering(bufBranch, bufNoBranch, 4) == false)
+            testFailed("Rendering results are different");
+        else
+            testPassed("Rendering results are the same");
+    }
+}
+
+init();
+successfullyParsed = true;
+</script>
+<script src="../../../resources/js-test-post.js"></script>
+</body>
+</html>
+
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/non-ascii-comments.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/non-ascii-comments.vert.html
index d7f5c30ebf38..dd0b284dd3c4 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/non-ascii-comments.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/non-ascii-comments.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/non-ascii.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/non-ascii.vert.html
index 39750358f9e5..e71da1396033 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/non-ascii.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/non-ascii.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/re-compile-re-link.html b/content/canvas/test/webgl/conformance/glsl/misc/re-compile-re-link.html
new file mode 100644
index 000000000000..36f787d4a647
--- /dev/null
+++ b/content/canvas/test/webgl/conformance/glsl/misc/re-compile-re-link.html
@@ -0,0 +1,151 @@
+<!--
+Copyright (c) 2012 The Chromium Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+ -->
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebGL Re-Compile and Re-link Shader conformance test.</title>
+<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<script src="../../../resources/js-test-pre.js"></script>
+<script src="../../resources/webgl-test.js"> </script>
+<script src="../../resources/webgl-test-utils.js"> </script>
+</head>
+<body>
+<canvas id="example" width="4" height="4" style="width: 40px; height: 30px;"></canvas>
+<div id="description"></div>
+<div id="console"></div>
+<script id="vshader" type="x-shader/x-vertex">
+attribute float column;
+attribute float height;
+uniform float position;
+void main() {
+  gl_Position = vec4(mod(column - position, 1.0) * 2.0 - 1.0, height, 0, 1);
+}
+</script>
+
+<script id="fshader1" type="x-shader/x-fragment">
+precision mediump float;
+void main() {
+  gl_FragColor = vec4(1,0,0,1);
+}
+</script>
+<script id="fshader2" type="x-shader/x-fragment">
+precision mediump float;
+uniform float foobar;
+void main() {
+  gl_FragColor = vec4(1,0,foobar,1);
+}
+</script>
+<script id="vshaderB" type="not-js">
+attribute vec2 position;
+varying vec2 v_texCoord;
+void main() {
+  gl_Position = vec4(position, 0, 1);
+  v_texCoord = vec2(position * 0.5 + 0.5);
+}
+</script>
+<script id="fshaderB" type="not-js">
+precision mediump float;
+varying vec2 v_texCoord;
+uniform sampler2D tex;
+void main() {
+  gl_FragColor = texture2D(tex, v_texCoord);
+}
+</script>
+
+<script>
+description(document.title);
+var wtu = WebGLTestUtils;
+var gl = wtu.create3DContext("example");
+
+var vsSource = document.getElementById("vshader").text;
+var fs1Source = document.getElementById("fshader1").text;
+var fs2Source = document.getElementById("fshader2").text;
+
+var vsSourceB = document.getElementById("vshaderB").text;
+var fsSourceB = document.getElementById("fshaderB").text;
+
+var vShader = gl.createShader(gl.VERTEX_SHADER);
+var fShader = gl.createShader(gl.FRAGMENT_SHADER);
+
+var vShaderB = gl.createShader(gl.VERTEX_SHADER);
+var fShaderB = gl.createShader(gl.FRAGMENT_SHADER);
+
+var program = gl.createProgram();
+var programB = gl.createProgram();
+
+gl.attachShader(program, vShader);
+gl.attachShader(program, fShader);
+
+gl.attachShader(programB, vShaderB);
+gl.attachShader(programB, fShaderB);
+
+var success;
+var shader;
+
+function checkShaderStatus(s) {
+  shader = s;
+  shouldBeTrue("success = gl.getShaderParameter(shader, gl.COMPILE_STATUS)");
+  if (!success) {
+    debug("error: " + gl.getShaderInfoLog());
+  }
+}
+
+var prg;
+function checkProgramStatus(p) {
+  prg = p;
+  shouldBeTrue("success = gl.getProgramParameter(prg, gl.LINK_STATUS)");
+  if (!success) {
+    debug("error: " + gl.getProgramInfoLog(prg));
+  }
+}
+
+for (var i = 0; i < 10; ++i) {
+  gl.shaderSource(vShader, vsSource);
+  gl.compileShader(vShader);
+  checkShaderStatus(vShader)
+  gl.shaderSource(fShader, fs1Source);
+  gl.compileShader(fShader);
+  checkShaderStatus(fShader)
+
+  gl.linkProgram(program);
+  checkProgramStatus(program)
+  gl.useProgram(program);
+
+  gl.shaderSource(vShaderB, vsSourceB);
+  gl.compileShader(vShaderB);
+  checkShaderStatus(vShaderB)
+  gl.shaderSource(fShaderB, fsSourceB);
+  gl.compileShader(fShaderB);
+  checkShaderStatus(fShaderB)
+
+  gl.linkProgram(programB);
+  checkProgramStatus(programB)
+
+  gl.useProgram(programB);
+}
+
+for (var i = 0; i < 10; ++i) {
+  // Now change the fragment shader
+  gl.shaderSource(fShader, fs2Source);
+  gl.compileShader(fShader);
+  checkShaderStatus(fShader)
+
+  // And re-link
+  gl.linkProgram(program);
+  checkProgramStatus(program)
+}
+
+glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors");
+
+successfullyParsed = true;
+</script>
+<script src="../../../resources/js-test-post.js"></script>
+
+</body>
+</html>
+
+
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-256-character-identifier.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-256-character-identifier.frag.html
index b949e7ec23a7..55e26ebff2a6 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-256-character-identifier.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-256-character-identifier.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-257-character-identifier.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-257-character-identifier.frag.html
index 2b6dcc3c5c00..8dec406e9393 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-257-character-identifier.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-257-character-identifier.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-_webgl-identifier.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-_webgl-identifier.vert.html
index 8069059d38fd..fe05b1bb5850 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-_webgl-identifier.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-_webgl-identifier.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-arbitrary-indexing.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-arbitrary-indexing.frag.html
index 808cee190f8b..5e1af44e6da1 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-arbitrary-indexing.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-arbitrary-indexing.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-arbitrary-indexing.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-arbitrary-indexing.vert.html
index 4c8e2df06696..9644b16a9692 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-arbitrary-indexing.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-arbitrary-indexing.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-attrib-array.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-attrib-array.vert.html
index 6b03c8b8f614..9b377eb494d5 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-attrib-array.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-attrib-array.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-attrib-struct.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-attrib-struct.vert.html
index 263528f0255c..d5c66e7b5a25 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-attrib-struct.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-attrib-struct.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-clipvertex.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-clipvertex.vert.html
index 5ea1c1443553..7837461de8a5 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-clipvertex.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-clipvertex.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-comma-assignment.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-comma-assignment.html
new file mode 100644
index 000000000000..ad2d4cc1acbe
--- /dev/null
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-comma-assignment.html
@@ -0,0 +1,41 @@
+<!--
+Copyright (c) 2011 The Chromium Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+-->
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebGL GLSL Conformance Tests</title>
+<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
+<script src="../../../resources/js-test-pre.js"></script>
+<script src="../../resources/webgl-test-utils.js"></script>
+<script src="../../resources/glsl-conformance-test.js"></script>
+</head>
+<body>
+<div id="description"></div>
+<div id="console"></div>
+<script id="fragmentShader" type="text/something-not-javascript">
+// fragment shader with comma assignment should succeed
+precision mediump float;
+void main() {
+  float a = 0.0;
+  float b = 0.0;
+  float c = 0.0;
+  float d = 0.0;
+  a = 1.1, b = 3.1;
+  c = 2.1, d = 4.1;
+  // Output green if successful, red if not.
+  gl_FragColor = ((a + b + c + d > 10.0) ? vec4(0,1,0,1) : vec4(1,0,0,1));
+}
+</script>
+<script>
+GLSLConformanceTester.runRenderTest();
+successfullyParsed = true;
+</script>
+</body>
+</html>
+
+
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-comma-conditional-assignment.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-comma-conditional-assignment.html
new file mode 100644
index 000000000000..70d84c458a8f
--- /dev/null
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-comma-conditional-assignment.html
@@ -0,0 +1,200 @@
+<!--
+Copyright (c) 2011 The Chromium Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+-->
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebGL GLSL Conformance Tests</title>
+<link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
+<script src="../../../resources/js-test-pre.js"></script>
+<script src="../../resources/webgl-test-utils.js"></script>
+<script src="../../resources/glsl-conformance-test.js"></script>
+</head>
+<body>
+<div id="description"></div>
+<div id="console"></div>
+<script id="fragmentShaderAGreaterThanBCheckR" type="text/something-not-javascript">
+// fragment shader with for scoping should succeed
+precision mediump float;
+void main() {
+  float a = 3.0;
+  float b = 2.0;
+  float r = 0.0;
+  float r0 = 0.5;
+  float r1 = 1.0;
+  float ab = a > b ? (r = r0, a) : (r = r1, b);
+  // Output green if successful, red if not.
+  gl_FragColor = ((r == r0) ? vec4(0,1,0,1) : vec4(1,0,0,1));
+}
+</script>
+<script id="fragmentShaderAGreaterThanBCheckAB" type="text/something-not-javascript">
+// fragment shader with for scoping should succeed
+precision mediump float;
+void main() {
+  float a = 3.0;
+  float b = 2.0;
+  float r = 0.0;
+  float r0 = 0.5;
+  float r1 = 1.0;
+  float ab = a > b ? (r = r0, a) : (r = r1, b);
+  // Output green if successful, red if not.
+  gl_FragColor = ((ab == a) ? vec4(0,1,0,1) : vec4(1,0,0,1));
+}
+</script>
+<script id="fragmentShaderAGreaterThanBCheckT0" type="text/something-not-javascript">
+// fragment shader with for scoping should succeed
+precision mediump float;
+void main() {
+  float a = 3.0;
+  float b = 2.0;
+  float t0 = 0.0;
+  float t1 = 0.0;
+  float r0 = 0.5;
+  float r1 = 1.0;
+  float ab = a > b ? (t0 = r0, a) : (t1 = r1, b);
+  // Output green if successful, red if not.
+  gl_FragColor = ((t0 == r0) ? vec4(0,1,0,1) : vec4(1,0,0,1));
+}
+</script>
+<script id="fragmentShaderAGreaterThanBCheckT1" type="text/something-not-javascript">
+// fragment shader with for scoping should succeed
+precision mediump float;
+void main() {
+  float a = 3.0;
+  float b = 2.0;
+  float t0 = 0.0;
+  float t1 = 0.0;
+  float r0 = 0.5;
+  float r1 = 1.0;
+  float ab = a > b ? (t0 = r0, a) : (t1 = r1, b);
+  // Output green if successful, red if not.
+  gl_FragColor = ((t1 == 0.0) ? vec4(0,1,0,1) : vec4(1,0,0,1));
+}
+</script>
+<script id="fragmentShaderBGreaterThanACheckR" type="text/something-not-javascript">
+// fragment shader with for scoping should succeed
+precision mediump float;
+void main() {
+  float a = 2.0;
+  float b = 3.0;
+  float r = 0.0;
+  float r0 = 0.5;
+  float r1 = 1.0;
+  float ab = a > b ? (r = r0, a) : (r = r1, b);
+  // Output green if successful, red if not.
+  gl_FragColor = ((r == r1) ? vec4(0,1,0,1) : vec4(1,0,0,1));
+}
+</script>
+<script id="fragmentShaderBGreaterThanACheckAB" type="text/something-not-javascript">
+// fragment shader with for scoping should succeed
+precision mediump float;
+void main() {
+  float a = 2.0;
+  float b = 3.0;
+  float r = 0.0;
+  float r0 = 0.5;
+  float r1 = 1.0;
+  float ab = a > b ? (r = r0, a) : (r = r1, b);
+  // Output green if successful, red if not.
+  gl_FragColor = ((ab == b) ? vec4(0,1,0,1) : vec4(1,0,0,1));
+}
+</script>
+<script id="fragmentShaderBGreaterThanACheckT0" type="text/something-not-javascript">
+// fragment shader with for scoping should succeed
+precision mediump float;
+void main() {
+  float a = 2.0;
+  float b = 3.0;
+  float t0 = 0.0;
+  float t1 = 0.0;
+  float r0 = 0.5;
+  float r1 = 1.0;
+  float ab = a > b ? (t0 = r0, a) : (t1 = r1, b);
+  // Output green if successful, red if not.
+  gl_FragColor = ((t0 == 0.0) ? vec4(0,1,0,1) : vec4(1,0,0,1));
+}
+</script>
+<script id="fragmentShaderBGreaterThanACheckT1" type="text/something-not-javascript">
+// fragment shader with for scoping should succeed
+precision mediump float;
+void main() {
+  float a = 2.0;
+  float b = 3.0;
+  float t0 = 0.0;
+  float t1 = 0.0;
+  float r0 = 0.5;
+  float r1 = 1.0;
+  float ab = a > b ? (t0 = r0, a) : (t1 = r1, b);
+  // Output green if successful, red if not.
+  gl_FragColor = ((t1 == r1) ? vec4(0,1,0,1) : vec4(1,0,0,1));
+}
+</script>
+<script>
+GLSLConformanceTester.runRenderTests([
+{ vShaderId: undefined,
+  vShaderSuccess: true,
+  fShaderId: 'fragmentShaderAGreaterThanBCheckR',
+  fShaderSuccess: true,
+  linkSuccess: true,
+  passMsg: "comma based conditional assignment works",
+},
+{ vShaderId: undefined,
+  vShaderSuccess: true,
+  fShaderId: 'fragmentShaderAGreaterThanBCheckAB',
+  fShaderSuccess: true,
+  linkSuccess: true,
+  passMsg: "comma based conditional assignment works",
+},
+{ vShaderId: undefined,
+  vShaderSuccess: true,
+  fShaderId: 'fragmentShaderAGreaterThanBCheckT0',
+  fShaderSuccess: true,
+  linkSuccess: true,
+  passMsg: "comma based conditional assignment works",
+},
+{ vShaderId: undefined,
+  vShaderSuccess: true,
+  fShaderId: 'fragmentShaderAGreaterThanBCheckT1',
+  fShaderSuccess: true,
+  linkSuccess: true,
+  passMsg: "comma based conditional assignment works",
+},
+{ vShaderId: undefined,
+  vShaderSuccess: true,
+  fShaderId: 'fragmentShaderBGreaterThanACheckR',
+  fShaderSuccess: true,
+  linkSuccess: true,
+  passMsg: "comma based conditional assignment works",
+},
+{ vShaderId: undefined,
+  vShaderSuccess: true,
+  fShaderId: 'fragmentShaderBGreaterThanACheckAB',
+  fShaderSuccess: true,
+  linkSuccess: true,
+  passMsg: "comma based conditional assignment works",
+},
+{ vShaderId: undefined,
+  vShaderSuccess: true,
+  fShaderId: 'fragmentShaderBGreaterThanACheckT0',
+  fShaderSuccess: true,
+  linkSuccess: true,
+  passMsg: "comma based conditional assignment works",
+},
+{ vShaderId: undefined,
+  vShaderSuccess: true,
+  fShaderId: 'fragmentShaderBGreaterThanACheckT1',
+  fShaderSuccess: true,
+  linkSuccess: true,
+  passMsg: "comma based conditional assignment works",
+}
+]);
+successfullyParsed = true;
+</script>
+</body>
+</html>
+
+
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-conditional-scoping.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-conditional-scoping.html
index e580b9ff08a9..7130be5d9182 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-conditional-scoping.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-conditional-scoping.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-default-precision.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-default-precision.frag.html
index 5d99cc5c131e..d9ec945c90f9 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-default-precision.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-default-precision.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-default-precision.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-default-precision.vert.html
index 0515a71c8819..6d509ea16e32 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-default-precision.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-default-precision.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-define-line-continuation.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-define-line-continuation.frag.html
index 3dba59a31af8..087e3bebd1c0 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-define-line-continuation.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-define-line-continuation.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-dfdx-no-ext.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-dfdx-no-ext.frag.html
index 509dcd500b78..7d01ffa927be 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-dfdx-no-ext.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-dfdx-no-ext.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-dfdx.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-dfdx.frag.html
index 4a53cb3735a8..c3c69ec4cf45 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-dfdx.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-dfdx.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-do-scoping.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-do-scoping.html
index 92d076033f76..99d8c81e21f6 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-do-scoping.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-do-scoping.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-error-directive.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-error-directive.html
index 44305c28a74c..f959642d7959 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-error-directive.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-error-directive.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/desktop-gl-constants.js" type="text/javascript"></script>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-explicit-int-cast.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-explicit-int-cast.vert.html
index f9a7ab1746a5..b9c044fa3df0 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-explicit-int-cast.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-explicit-int-cast.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-float-return-value.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-float-return-value.frag.html
index 911e213cbdaa..89c9ed975598 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-float-return-value.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-float-return-value.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-for-loop.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-for-loop.html
index 748953021ebe..4d4e491cdd01 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-for-loop.html
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index f6ad68dfc035..72dc3aac68d9 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 30aad064d9d2..f912f31a847a 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 6fd6862b7b25..242e5be9fd18 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 3e2a48da14d5..3873f42769d4 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
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index 108d82a8df17..23319230a7e8 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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 <title>WebGL GLSL Conformance Tests</title>
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index b82beec2a5ee..98e2e9beb30a 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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index aaf48a6af73c..3295d9c3e9a1 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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index c4be0fec8376..5df342f59602 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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 <title>WebGL GLSL Conformance Tests</title>
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index 274dd93f4e79..d021a24c4f8b 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 1056f3e425ce..1c5d9b72ea13 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
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 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 96b7e1863388..d4f2786414cb 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index afd4886a1a24..2848ccfba52e 100644
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+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-include.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 27a8a75f669e..13e63ba0c9dd 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index c65e8c7ec463..969dd8ebe046 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 0108ab4e83e9..951685a3d8c3 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index efce5bc3817d..e37f82bf8669 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index ad08bd196c47..4c41b9b4b57a 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index a7bcf1c8999a..c2c1ce194157 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 0256540d7064..49c16949b57e 100644
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+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-line-directive.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 1ff681449f39..e2cb887b7ba2 100644
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+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-long-line.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index e85c44034c30..21e5003d72ef 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 6ee000e8343f..e9ebb33d0cd6 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 90ef410a4e10..941ef2433d8e 100644
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+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-quoted-error.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-undefined-preprocessor-symbol.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-undefined-preprocessor-symbol.frag.html
index 296f88280bf4..7ac96bf3d838 100644
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@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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index 8253a6009115..571b3ddf96f2 100644
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+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-uniform-in-loop-condition.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec2-return-value.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec2-return-value.frag.html
index 5cfe730efde1..9a3857eeb0a0 100644
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+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec2-return-value.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
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 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec3-return-value.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec3-return-value.frag.html
index 60b4c4d4676c..6a21fe451a78 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec3-return-value.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec3-return-value.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec4-return-value.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec4-return-value.frag.html
index 200c4a19719b..a37ead063883 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec4-return-value.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec4-return-value.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec4-vec3-vec4-conditional.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec4-vec3-vec4-conditional.html
index d3bb6e5db5f9..01829bd09f99 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec4-vec3-vec4-conditional.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-vec4-vec3-vec4-conditional.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-100.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-100.frag.html
index 42f87863cb3f..ef645aa9b6c9 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-100.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-100.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-100.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-100.vert.html
index 65bbafe54e6a..44c0d4ec1f6c 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-100.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-100.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-120.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-120.vert.html
index 01d058c2177f..a1e1fa689bc4 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-120.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-120.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-130.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-130.vert.html
index 1ecbcc0862fd..38f775aab797 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-130.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-version-130.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-webgl-identifier.vert.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-webgl-identifier.vert.html
index a6b2e62f383d..b547ed36ef3b 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-with-webgl-identifier.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-with-webgl-identifier.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shader-without-precision.frag.html b/content/canvas/test/webgl/conformance/glsl/misc/shader-without-precision.frag.html
index 0510447ff82a..37134f79ff66 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shader-without-precision.frag.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shader-without-precision.frag.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/shared.html b/content/canvas/test/webgl/conformance/glsl/misc/shared.html
index 468f571cf915..26bd5233968a 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/shared.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/shared.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/struct-nesting-exceeds-maximum.html b/content/canvas/test/webgl/conformance/glsl/misc/struct-nesting-exceeds-maximum.html
index 6ab8b9dff3a1..157a9a8a0077 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/struct-nesting-exceeds-maximum.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/struct-nesting-exceeds-maximum.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/struct-nesting-under-maximum.html b/content/canvas/test/webgl/conformance/glsl/misc/struct-nesting-under-maximum.html
index b471556530e5..e6d61a5c9745 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/struct-nesting-under-maximum.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/struct-nesting-under-maximum.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/misc/uniform-location-length-limits.html b/content/canvas/test/webgl/conformance/glsl/misc/uniform-location-length-limits.html
index 9adaa58b6c2e..59650838b295 100644
--- a/content/canvas/test/webgl/conformance/glsl/misc/uniform-location-length-limits.html
+++ b/content/canvas/test/webgl/conformance/glsl/misc/uniform-location-length-limits.html
@@ -4,6 +4,7 @@
 <meta charset="utf-8">
 <title>WebGL uniform location length tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test.js"> </script>
 <script src="../../resources/webgl-test-utils.js"> </script>
@@ -60,7 +61,7 @@ if (window.initNonKhronosFramework) {
 }
 
 var wtu = WebGLTestUtils;
-var gl = wtu.create3DContext(document.getElementById("example"));
+var gl = wtu.create3DContext("example");
 
 debug("Test uniform location underneath the length limit");
 var program = wtu.loadProgramFromScript(gl, "goodVertexShader", "fragmentShader");
diff --git a/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_field.vert.html b/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_field.vert.html
index 33ac06510961..417de0fb9604 100644
--- a/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_field.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_field.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_function.vert.html b/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_function.vert.html
index 9063f28c82d8..39842666fc18 100644
--- a/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_function.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_function.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_struct.vert.html b/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_struct.vert.html
index c2de5d22a0d0..aead4860005f 100644
--- a/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_struct.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_struct.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_variable.vert.html b/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_variable.vert.html
index cb8babc9070e..d1c5894de14b 100644
--- a/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_variable.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/reserved/_webgl_variable.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/reserved/webgl_field.vert.html b/content/canvas/test/webgl/conformance/glsl/reserved/webgl_field.vert.html
index 7342c0083cfc..540e63cfdb0c 100644
--- a/content/canvas/test/webgl/conformance/glsl/reserved/webgl_field.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/reserved/webgl_field.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/reserved/webgl_function.vert.html b/content/canvas/test/webgl/conformance/glsl/reserved/webgl_function.vert.html
index b1b0aa123d86..f7ac57568b22 100644
--- a/content/canvas/test/webgl/conformance/glsl/reserved/webgl_function.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/reserved/webgl_function.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/reserved/webgl_struct.vert.html b/content/canvas/test/webgl/conformance/glsl/reserved/webgl_struct.vert.html
index ea643deecc9b..1fc44ad8e150 100644
--- a/content/canvas/test/webgl/conformance/glsl/reserved/webgl_struct.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/reserved/webgl_struct.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/reserved/webgl_variable.vert.html b/content/canvas/test/webgl/conformance/glsl/reserved/webgl_variable.vert.html
index 78a0b154f729..883838e1ed57 100644
--- a/content/canvas/test/webgl/conformance/glsl/reserved/webgl_variable.vert.html
+++ b/content/canvas/test/webgl/conformance/glsl/reserved/webgl_variable.vert.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL GLSL Conformance Tests</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test-utils.js"></script>
 <script src="../../resources/glsl-conformance-test.js"></script>
diff --git a/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2d-bias.html b/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2d-bias.html
index 287adf6e719e..63a5e773e175 100644
--- a/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2d-bias.html
+++ b/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2d-bias.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL texture2D GLSL conformance test.</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test.js"> </script>
 <script src="../../resources/webgl-test-utils.js"> </script>
@@ -26,7 +27,7 @@ void main() {
     texCoord = texCoord0;
 }
 </script>
-<script id="fshader2d" type="x-shader/x-vertex">
+<script id="fshader2d" type="x-shader/x-fragment">
 precision mediump float;
 uniform sampler2D tex;
 uniform float bias;
@@ -46,10 +47,7 @@ shouldBe("canvas.height", "256");
 
 var gl = wtu.create3DContext(canvas);
 var program = wtu.setupProgram(
-    gl,
-    [wtu.loadShaderFromScript(gl, 'vshader2d', gl.VERTEX_SHADER),
-     wtu.loadShaderFromScript(gl, 'fshader2d', gl.FRAGMENT_SHADER)],
-    ['vPosition', 'texCoord0'], [0, 1]);
+    gl, ['vshader2d', 'fshader2d'], ['vPosition', 'texCoord0'], [0, 1]);
 wtu.setupUnitQuad(gl, 0, 1);
 
 var colors = [
diff --git a/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2dlod.html b/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2dlod.html
index 35d2530fdb11..5ce2e301fb52 100644
--- a/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2dlod.html
+++ b/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2dlod.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL texture2D GLSL conformance test.</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test.js"> </script>
 <script src="../../resources/webgl-test-utils.js"> </script>
@@ -46,10 +47,7 @@ shouldBe("canvas.height", "256");
 
 var gl = wtu.create3DContext(canvas);
 var program = wtu.setupProgram(
-    gl,
-    [wtu.loadShaderFromScript(gl, 'vshader2d', gl.VERTEX_SHADER),
-     wtu.loadShaderFromScript(gl, 'fshader2d', gl.FRAGMENT_SHADER)],
-    ['vPosition', 'texCoord0'], [0, 1]);
+    gl, ['vshader2d', 'fshader2d'], ['vPosition', 'texCoord0'], [0, 1]);
 wtu.setupUnitQuad(gl, 0, 1);
 
 var colors = [
diff --git a/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2dproj.html b/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2dproj.html
index 628872b8acd0..84cb63d6ad87 100644
--- a/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2dproj.html
+++ b/content/canvas/test/webgl/conformance/glsl/samplers/glsl-function-texture2dproj.html
@@ -9,6 +9,7 @@ found in the LICENSE file.
 <meta charset="utf-8">
 <title>WebGL texture2D GLSL conformance test.</title>
 <link rel="stylesheet" href="../../../resources/js-test-style.css"/>
+<link rel="stylesheet" href="../../resources/glsl-feature-tests.css"/>
 <script src="../../../resources/js-test-pre.js"></script>
 <script src="../../resources/webgl-test.js"> </script>
 <script src="../../resources/webgl-test-utils.js"> </script>
@@ -57,9 +58,7 @@ void main() {
 description("tests GLSL texture2DProj function with");
 
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-
-var gl = wtu.create3DContext(canvas, {antialias: false});
+var gl = wtu.create3DContext("example", {antialias: false});
 
 wtu.setupUnitQuad(gl, 0, 1);
 var tex = gl.createTexture();
@@ -85,10 +84,8 @@ for (var ss = 0; ss < 2; ++ss) {
   debug("");
   debug(ss ? "testing vec4 version" : "testing vec3 version");
   var program = wtu.setupProgram(
-	  gl,
-	  [wtu.loadShaderFromScript(gl, 'vshader' + ss, gl.VERTEX_SHADER),
-	   wtu.loadShaderFromScript(gl, 'fshader' + ss, gl.FRAGMENT_SHADER)],
-	  ['vPosition', 'texCoord0'], [0, 1]);
+	  gl, ['vshader' + ss, 'fshader' + ss],
+      ['vPosition', 'texCoord0'], [0, 1]);
   gl.useProgram(program);
   var loc = gl.getUniformLocation(program, "divisor");
 
diff --git a/content/canvas/test/webgl/conformance/limits/gl-max-texture-dimensions.html b/content/canvas/test/webgl/conformance/limits/gl-max-texture-dimensions.html
index e890bf1f69f5..7036623deb5f 100644
--- a/content/canvas/test/webgl/conformance/limits/gl-max-texture-dimensions.html
+++ b/content/canvas/test/webgl/conformance/limits/gl-max-texture-dimensions.html
@@ -40,8 +40,7 @@ void main()
 <script>
 description(document.title);
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 var program = wtu.setupTexturedQuad(gl);
 
 // Note: It seems like a reasonable assuption that a 1xN texture size should
@@ -80,10 +79,7 @@ wtu.checkCanvas(gl, [0, 255, 128, 255],
                 "Should be 0, 255, 128, 255");
 
 var program = wtu.setupProgram(
-    gl,
-    [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
-     wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
-    ['vPosition', 'texCoord0'], [0, 1]);
+    gl, ['vshader', 'fshader'], ['vPosition', 'texCoord0'], [0, 1]);
 
 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors.");
 
diff --git a/content/canvas/test/webgl/conformance/limits/gl-min-attribs.html b/content/canvas/test/webgl/conformance/limits/gl-min-attribs.html
index 1e116f473876..c85fdb488486 100644
--- a/content/canvas/test/webgl/conformance/limits/gl-min-attribs.html
+++ b/content/canvas/test/webgl/conformance/limits/gl-min-attribs.html
@@ -45,14 +45,12 @@ void main()
 <script>
 description(document.title);
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 var program = wtu.setupTexturedQuad(gl);
 
 var program = wtu.setupProgram(
     gl,
-    [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
-     wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
+    ['vshader', 'fshader'],
     ['vPosition', 'v0', 'v1', 'v2', 'v3', 'v4', 'v5', 'v6'],
     [0, 1, 2, 3, 4, 5, 6, 7]);
 
@@ -73,7 +71,7 @@ for (var ii = 0; ii < 7; ++ii) {
 
 wtu.drawQuad(gl);
 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
-wtu.checkCanvasRect(gl, 0, 0, canvas.width, canvas.height, [255, 127, 64, 32], "Should render 255,127,64,32 (+/-1)", 1);
+wtu.checkCanvasRect(gl, 0, 0, gl.canvas.width, gl.canvas.height, [255, 127, 64, 32], "Should render 255,127,64,32 (+/-1)", 1);
 
 successfullyParsed = true;
 
diff --git a/content/canvas/test/webgl/conformance/limits/gl-min-textures.html b/content/canvas/test/webgl/conformance/limits/gl-min-textures.html
index 5e7a47360936..3a096f201142 100644
--- a/content/canvas/test/webgl/conformance/limits/gl-min-textures.html
+++ b/content/canvas/test/webgl/conformance/limits/gl-min-textures.html
@@ -41,16 +41,12 @@ void main()
 <script>
 description(document.title);
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 var program = wtu.setupTexturedQuad(gl);
 
 //------------------------------------------------------------------------------
 var program = wtu.setupProgram(
-    gl,
-    [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
-     wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
-    ['vPosition'], [0]);
+    gl, ['vshader', 'fshader'], ['vPosition'], [0]);
 
 for (var ii = 0; ii < 8; ++ii) {
   var loc = gl.getUniformLocation(program, "uni[" + ii + "]");
diff --git a/content/canvas/test/webgl/conformance/limits/gl-min-uniforms.html b/content/canvas/test/webgl/conformance/limits/gl-min-uniforms.html
index 3d29a258b193..4ec814c132eb 100644
--- a/content/canvas/test/webgl/conformance/limits/gl-min-uniforms.html
+++ b/content/canvas/test/webgl/conformance/limits/gl-min-uniforms.html
@@ -65,16 +65,11 @@ void main()
 <script>
 description(document.title);
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 var program = wtu.setupTexturedQuad(gl);
 
 //------------------------------------------------------------------------------
-var program = wtu.setupProgram(
-    gl,
-    [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
-     wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
-    ['vPosition'], [0]);
+var program = wtu.setupProgram(gl, ['vshader', 'fshader'], ['vPosition'], [0]);
 
 for (var ii = 0; ii < 128; ++ii) {
   var loc = gl.getUniformLocation(program, "uni[" + ii + "]");
@@ -83,14 +78,10 @@ for (var ii = 0; ii < 128; ++ii) {
 
 wtu.drawQuad(gl);
 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
-wtu.checkCanvasRect(gl, 0, 0, canvas.width, canvas.height, [255, 127, 64, 255], "Should render 255,127,64,32 (+/-1)", 1);
+wtu.checkCanvasRect(gl, 0, 0, gl.canvas.width, gl.canvas.height, [255, 127, 64, 255], "Should render 255,127,64,32 (+/-1)", 1);
 
 //------------------------------------------------------------------------------
-var program = wtu.setupProgram(
-    gl,
-    [wtu.loadShaderFromScript(gl, 'vshader2', gl.VERTEX_SHADER),
-     wtu.loadShaderFromScript(gl, 'fshader2', gl.FRAGMENT_SHADER)],
-    ['vPosition'], [0]);
+var program = wtu.setupProgram(gl, ['vshader2', 'fshader2'], ['vPosition'], [0]);
 
 for (var ii = 0; ii < 16; ++ii) {
   var loc = gl.getUniformLocation(program, "uni[" + ii + "]");
@@ -100,7 +91,7 @@ for (var ii = 0; ii < 16; ++ii) {
 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
 wtu.drawQuad(gl);
 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
-wtu.checkCanvasRect(gl, 0, 0, canvas.width, canvas.height, [32, 64, 127, 255], "Should render 32,64,127,255 (+/-1)", 1);
+wtu.checkCanvasRect(gl, 0, 0, gl.canvas.width, gl.canvas.height, [32, 64, 127, 255], "Should render 32,64,127,255 (+/-1)", 1);
 
 successfullyParsed = true;
 
diff --git a/content/canvas/test/webgl/conformance/misc/delayed-drawing.html b/content/canvas/test/webgl/conformance/misc/delayed-drawing.html
index 9b3260b9410a..e3f9e45a8567 100644
--- a/content/canvas/test/webgl/conformance/misc/delayed-drawing.html
+++ b/content/canvas/test/webgl/conformance/misc/delayed-drawing.html
@@ -20,8 +20,7 @@ found in the LICENSE file.
 <script>
 description(document.title);
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 var program = wtu.setupTexturedQuad(gl);
 
 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
diff --git a/content/canvas/test/webgl/conformance/misc/functions-returning-strings.html b/content/canvas/test/webgl/conformance/misc/functions-returning-strings.html
index e5bc74d4e77c..0f7a5e4333ad 100644
--- a/content/canvas/test/webgl/conformance/misc/functions-returning-strings.html
+++ b/content/canvas/test/webgl/conformance/misc/functions-returning-strings.html
@@ -12,6 +12,7 @@ found in the LICENSE file.
 <script src="../../resources/desktop-gl-constants.js" type="text/javascript"></script>
 <script src="../../resources/js-test-pre.js"></script>
 <script src="../resources/webgl-test.js"></script>
+<script src="../resources/webgl-test-utils.js"></script>
 </head>
 <body>
 <div id="description"></div>
@@ -39,12 +40,13 @@ function shouldReturnString(_a)
   if (exception)
     testFailed(_a + ' should return a string. Threw exception ' + exception);
   else if (typeof _av == "string")
-    testPassed(_a + ' returns a string: "' + _av + '"');
+    testPassed(_a + ' returns a string');
   else
     testFailed(_a + ' should return a string.  Returns: "' + _av + '"');
 }
 
-var gl = create3DContext(document.getElementById("canvas"));
+var wtu = WebGLTestUtils;
+var gl = wtu.create3DContext("canvas");
 if (!gl) {
   testFailed("context does not exist");
 } else {
@@ -71,9 +73,18 @@ if (!gl) {
   gl.linkProgram(prog);
   shouldReturnString("gl.getProgramInfoLog(prog)");
 
+  // Make sure different numbers of extensions doesn't result in
+  // different test output.
   var exts = gl.getSupportedExtensions();
+  var allPassed = true;
   for (i in exts) {
-    shouldReturnString("gl.getSupportedExtensions()[" + i + "]");
+    if (typeof i != "string") {
+      shouldReturnString("gl.getSupportedExtensions()[" + i + "]");
+      allPassed = false;
+    }
+  }
+  if (allPassed) {
+    testPassed('getSupportedExtensions() returns an array of strings');
   }
 
   shouldReturnString("gl.getParameter(gl.VENDOR)");
diff --git a/content/canvas/test/webgl/conformance/misc/instanceof-test.html b/content/canvas/test/webgl/conformance/misc/instanceof-test.html
index a13c119f8bde..607d95832a59 100644
--- a/content/canvas/test/webgl/conformance/misc/instanceof-test.html
+++ b/content/canvas/test/webgl/conformance/misc/instanceof-test.html
@@ -39,7 +39,7 @@ var wtu = WebGLTestUtils;
 description(document.title);
 debug("Tests that instanceof works on WebGL objects.");
 debug("");
-var gl = create3DContext(document.getElementById("canvas"));
+var gl = wtu.create3DContext("canvas");
 shouldBeTrue('gl instanceof WebGLRenderingContext');
 shouldBeTrue('gl.createBuffer() instanceof WebGLBuffer');
 shouldBeTrue('gl.createFramebuffer() instanceof WebGLFramebuffer');
@@ -48,11 +48,7 @@ shouldBeTrue('gl.createRenderbuffer() instanceof WebGLRenderbuffer');
 shouldBeTrue('gl.createShader(gl.VERTEX_SHADER) instanceof WebGLShader');
 shouldBeTrue('gl.createTexture() instanceof WebGLTexture');
 
-var program = wtu.setupProgram(
-    gl,
-    [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
-     wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
-    ['vPosition'], [0]);
+var program = wtu.setupProgram(gl, ['vshader', 'fshader'], ['vPosition'], [0]);
 
 shouldBeTrue('gl.getUniformLocation(program, "color") instanceof WebGLUniformLocation');
 shouldBeTrue('gl.getActiveAttrib(program, 0) instanceof WebGLActiveInfo');
@@ -72,16 +68,16 @@ function shouldThrowWithNew(objectType, objectName)
     }
 }
 
-shouldThrowWithNew(WebGLRenderingContext, 'WebGLRenderingContext');
-shouldThrowWithNew(WebGLActiveInfo, 'WebGLActiveInfo');
-shouldThrowWithNew(WebGLBuffer, 'WebGLBuffer');
-shouldThrowWithNew(WebGLFramebuffer, 'WebGLFramebuffer');
-shouldThrowWithNew(WebGLProgram, 'WebGLProgram');
-shouldThrowWithNew(WebGLRenderbuffer, 'WebGLRenderbuffer');
-shouldThrowWithNew(WebGLShader, 'WebGLShader');
-shouldThrowWithNew(WebGLTexture, 'WebGLTexture');
-shouldThrowWithNew(WebGLUniformLocation, 'WebGLUniformLocation');
-shouldThrowWithNew(WebGLShaderPrecisionFormat, 'WebGLShaderPrecisionFormat');
+shouldThrowWithNew(window.WebGLRenderingContext, 'WebGLRenderingContext');
+shouldThrowWithNew(window.WebGLActiveInfo, 'WebGLActiveInfo');
+shouldThrowWithNew(window.WebGLBuffer, 'WebGLBuffer');
+shouldThrowWithNew(window.WebGLFramebuffer, 'WebGLFramebuffer');
+shouldThrowWithNew(window.WebGLProgram, 'WebGLProgram');
+shouldThrowWithNew(window.WebGLRenderbuffer, 'WebGLRenderbuffer');
+shouldThrowWithNew(window.WebGLShader, 'WebGLShader');
+shouldThrowWithNew(window.WebGLTexture, 'WebGLTexture');
+shouldThrowWithNew(window.WebGLUniformLocation, 'WebGLUniformLocation');
+shouldThrowWithNew(window.WebGLShaderPrecisionFormat, 'WebGLShaderPrecisionFormat');
 
 successfullyParsed = true;
 </script>
diff --git a/content/canvas/test/webgl/conformance/misc/is-object.html b/content/canvas/test/webgl/conformance/misc/is-object.html
index 104e0640c4e1..a59dd3c39708 100644
--- a/content/canvas/test/webgl/conformance/misc/is-object.html
+++ b/content/canvas/test/webgl/conformance/misc/is-object.html
@@ -27,8 +27,7 @@ var texture;
 description("Tests 'is' calls against non-bound and deleted objects");
 
 wtu = WebGLTestUtils;
-canvas = document.getElementById("canvas");
-gl = wtu.create3DContext(canvas);
+gl = wtu.create3DContext("canvas");
 shouldGenerateGLError = wtu.shouldGenerateGLError;
 
 shouldGenerateGLError(gl, gl.NO_ERROR, "buffer = gl.createBuffer()");
diff --git a/content/canvas/test/webgl/conformance/misc/shader-precision-format.html b/content/canvas/test/webgl/conformance/misc/shader-precision-format.html
index 8cb675b3f2ab..53b344ca4c7b 100644
--- a/content/canvas/test/webgl/conformance/misc/shader-precision-format.html
+++ b/content/canvas/test/webgl/conformance/misc/shader-precision-format.html
@@ -22,7 +22,7 @@ var wtu = WebGLTestUtils;
 description(document.title);
 debug("Tests that WebGLShaderPrecisionFormat class and getShaderPrecisionFormat work.");
 debug("");
-var gl = create3DContext(document.getElementById("canvas"));
+var gl = wtu.create3DContext("canvas");
 
 function verifyShaderPrecisionFormat(shadertype, precisiontype) {
     shouldBeTrue('gl.getShaderPrecisionFormat(' + shadertype + ', ' +
diff --git a/content/canvas/test/webgl/conformance/misc/uninitialized-test.html b/content/canvas/test/webgl/conformance/misc/uninitialized-test.html
index 673f85a09584..9a423f1c9e64 100644
--- a/content/canvas/test/webgl/conformance/misc/uninitialized-test.html
+++ b/content/canvas/test/webgl/conformance/misc/uninitialized-test.html
@@ -6,6 +6,7 @@
 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
 <script src="../../resources/js-test-pre.js"></script>
 <script src="../resources/webgl-test.js"></script>
+<script src="../resources/webgl-test-utils.js"></script>
 </head>
 <body>
 <div id="description"></div>
@@ -14,8 +15,8 @@
 <script>
 description("Tests to check user code cannot access uninitialized data from GL resources.");
 
-var canvas = document.getElementById("canvas");
-var gl = create3DContext(canvas);
+var wtu = WebGLTestUtils;
+var gl = wtu.create3DContext("canvas");
 if (!gl)
   testFailed("Context created.");
 else
@@ -149,7 +150,7 @@ gl.clearColor(0.0, 1.0, 0.0, 0.0);
 gl.clear(gl.COLOR_BUFFER_BIT);
 glErrorShouldBe(gl, gl.NO_ERROR);
 gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0, 0, width, height, 0);
-checkNonZeroPixels(tex, width, height, 0, 0, canvas.width, canvas.height, 0, 255, 0, 0);
+checkNonZeroPixels(tex, width, height, 0, 0, gl.canvas.width, gl.canvas.height, 0, 255, 0, 0);
 gl.deleteTexture(tex);
 gl.finish();
 glErrorShouldBe(gl, gl.NO_ERROR);
diff --git a/content/canvas/test/webgl/conformance/more/conformance/constants.html b/content/canvas/test/webgl/conformance/more/conformance/constants.html
index 5ab8389186e5..46aeb9741b38 100644
--- a/content/canvas/test/webgl/conformance/more/conformance/constants.html
+++ b/content/canvas/test/webgl/conformance/more/conformance/constants.html
@@ -152,7 +152,6 @@ SAMPLE_BUFFERS : 0x80A8,
 SAMPLES : 0x80A9,
 SAMPLE_COVERAGE_VALUE : 0x80AA,
 SAMPLE_COVERAGE_INVERT : 0x80AB,
-NUM_COMPRESSED_TEXTURE_FORMATS : 0x86A2,
 COMPRESSED_TEXTURE_FORMATS : 0x86A3,
 DONT_CARE : 0x1100,
 FASTEST : 0x1101,
diff --git a/content/canvas/test/webgl/conformance/more/conformance/quickCheckAPI.html b/content/canvas/test/webgl/conformance/more/conformance/quickCheckAPI.html
deleted file mode 100644
index e69de29bb2d1..000000000000
diff --git a/content/canvas/test/webgl/conformance/more/conformance/quickCheckAPI.js b/content/canvas/test/webgl/conformance/more/conformance/quickCheckAPI.js
index 557f2e226c07..330f7c82444f 100644
--- a/content/canvas/test/webgl/conformance/more/conformance/quickCheckAPI.js
+++ b/content/canvas/test/webgl/conformance/more/conformance/quickCheckAPI.js
@@ -135,7 +135,6 @@ getParameterPname = constCheck(
   GL.MAX_VERTEX_TEXTURE_IMAGE_UNITS || "GL.MAX_VERTEX_TEXTURE_IMAGE_UNITS",
   GL.MAX_VERTEX_UNIFORM_VECTORS || "GL.MAX_VERTEX_UNIFORM_VECTORS",
   GL.MAX_VIEWPORT_DIMS || "GL.MAX_VIEWPORT_DIMS",
-  GL.NUM_COMPRESSED_TEXTURE_FORMATS || "GL.NUM_COMPRESSED_TEXTURE_FORMATS",
   GL.PACK_ALIGNMENT || "GL.PACK_ALIGNMENT",
   GL.POLYGON_OFFSET_FACTOR || "GL.POLYGON_OFFSET_FACTOR",
   GL.POLYGON_OFFSET_FILL || "GL.POLYGON_OFFSET_FILL",
@@ -338,7 +337,7 @@ randomImage = function(w,h) {
   } else if (r < 0.5) {
     img = document.createElement('video');
     img.width = w; img.height = h;
-  } else if (r < 0.75) {
+  } else if (r < 0.5) {
     img = document.createElement('img');
     img.width = w; img.height = h;
   } else {
diff --git a/content/canvas/test/webgl/conformance/more/util.js b/content/canvas/test/webgl/conformance/more/util.js
index f02a9494a1f9..a4b6c622d476 100644
--- a/content/canvas/test/webgl/conformance/more/util.js
+++ b/content/canvas/test/webgl/conformance/more/util.js
@@ -1237,7 +1237,8 @@ initGL_CONTEXT_ID = function(){
         GL_CONTEXT_ID = contextNames[i];
         break;
       }
-    } catch (e) {}
+    } catch (e) {
+    }
   }
   if (!GL_CONTEXT_ID) {
     log("No WebGL context found. Unable to run tests.");
diff --git a/content/canvas/test/webgl/conformance/programs/gl-get-active-attribute.html b/content/canvas/test/webgl/conformance/programs/gl-get-active-attribute.html
index fe048e20e457..13a7d4d08188 100644
--- a/content/canvas/test/webgl/conformance/programs/gl-get-active-attribute.html
+++ b/content/canvas/test/webgl/conformance/programs/gl-get-active-attribute.html
@@ -34,8 +34,7 @@ void main()
 description("Tests getActiveAttrib for various types");
 
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 
 var tests = [
 { glType: gl.FLOAT,      size: 1, type: 'float', access: ''},
diff --git a/content/canvas/test/webgl/conformance/programs/gl-get-active-uniform.html b/content/canvas/test/webgl/conformance/programs/gl-get-active-uniform.html
index 699dd4b1c3d8..e2c92d970d2e 100644
--- a/content/canvas/test/webgl/conformance/programs/gl-get-active-uniform.html
+++ b/content/canvas/test/webgl/conformance/programs/gl-get-active-uniform.html
@@ -52,8 +52,7 @@ void main()
 description("Tests getActiveUniform for various types");
 
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 
 var tests = [
 { glType: gl.FLOAT,      size: 1, type: 'float', access: 'uniform0'},
@@ -118,11 +117,9 @@ for (var tt = 0; tt < tests.length; ++tt) {
   }
 }
 
-var p1 = wtu.setupProgram(
-    gl, [vs, wtu.loadShaderFromScript(gl, 'fshaderA', gl.FRAGMENT_SHADER)]);
+var p1 = wtu.setupProgram(gl, [vs, 'fshaderA']);
 glErrorShouldBe(gl, gl.NO_ERROR, "no errors from program A");
-var p2 = wtu.setupProgram(
-    gl, [vs, wtu.loadShaderFromScript(gl, 'fshaderB', gl.FRAGMENT_SHADER)]);
+var p2 = wtu.setupProgram(gl, [vs, 'fshaderB']);
 glErrorShouldBe(gl, gl.NO_ERROR, "no errors from program B");
 var l1 = gl.getUniformLocation(p1, 'uniform0');
 glErrorShouldBe(gl, gl.NO_ERROR, "no errors getting location of uniform0 p1");
diff --git a/content/canvas/test/webgl/conformance/programs/gl-getshadersource.html b/content/canvas/test/webgl/conformance/programs/gl-getshadersource.html
index 0d82ceef68ec..c9135242340d 100644
--- a/content/canvas/test/webgl/conformance/programs/gl-getshadersource.html
+++ b/content/canvas/test/webgl/conformance/programs/gl-getshadersource.html
@@ -21,8 +21,7 @@ found in the LICENSE file.
 <script>
 description("Tests that the source that goes into a shader is what comes out.");
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 var original = document.getElementById("vshader").text;
 var shader = gl.createShader(gl.VERTEX_SHADER);
 gl.shaderSource(shader, original);
diff --git a/content/canvas/test/webgl/conformance/programs/invalid-UTF-16.html b/content/canvas/test/webgl/conformance/programs/invalid-UTF-16.html
index 8013e4a5bee4..5a764f3703d2 100644
--- a/content/canvas/test/webgl/conformance/programs/invalid-UTF-16.html
+++ b/content/canvas/test/webgl/conformance/programs/invalid-UTF-16.html
@@ -38,7 +38,7 @@ var string = array.join('');
 // true. The second seems to sanitize the form's input before
 // converting it to a UTF8 string.
 
-var gl = create3DContext(null);
+var gl = create3DContext();
 var program = gl.createProgram();
 gl.bindAttribLocation(program, 0, string);
 testPassed("bindAttribLocation with invalid UTF-16 did not crash");
diff --git a/content/canvas/test/webgl/conformance/renderbuffers/renderbuffer-initialization.html b/content/canvas/test/webgl/conformance/renderbuffers/renderbuffer-initialization.html
index 7fe017e06434..54375ca1fba7 100644
--- a/content/canvas/test/webgl/conformance/renderbuffers/renderbuffer-initialization.html
+++ b/content/canvas/test/webgl/conformance/renderbuffers/renderbuffer-initialization.html
@@ -20,18 +20,17 @@ found in the LICENSE file.
 var wtu = WebGLTestUtils;
 description('Verify renderbuffers are initialized to 0 before being read in WebGL');
 
-var canvas = document.getElementById("testbed");
-var gl = create3DContext(canvas);
+var gl = wtu.create3DContext("testbed");
 if (!gl) {
     testFailed('canvas.getContext() failed');
 } else {
     // Set the clear color to green. It should never show up.
     gl.clearColor(0, 1, 0, 1);
 
-    runTest(gl, canvas.width, canvas.height, 0);
-    runTest(gl, canvas.width, canvas.height, 1);
-    runTest(gl, canvas.width, canvas.height, 0);
-    runTest(gl, canvas.width, canvas.height, 1);
+    runTest(gl, gl.canvas.width, gl.canvas.height, 0);
+    runTest(gl, gl.canvas.width, gl.canvas.height, 1);
+    runTest(gl, gl.canvas.width, gl.canvas.height, 0);
+    runTest(gl, gl.canvas.width, gl.canvas.height, 1);
 
     // Testing buffer clearing won't change the clear values.
     var clearColor = gl.getParameter(gl.COLOR_CLEAR_VALUE);
@@ -86,8 +85,8 @@ function runTest(gl, width, height, order)
     // this clear should not matter we are about to resize
 	gl.clear(gl.COLOR_BUFFER_BIT);
 
-    canvas.width += 1;
-    canvas.height += 1;
+    gl.canvas.width += 1;
+    gl.canvas.height += 1;
 
     debug('');
 }
diff --git a/content/canvas/test/webgl/conformance/rendering/gl-clear.html b/content/canvas/test/webgl/conformance/rendering/gl-clear.html
index 1f6e6a69bf2b..d262699d081e 100644
--- a/content/canvas/test/webgl/conformance/rendering/gl-clear.html
+++ b/content/canvas/test/webgl/conformance/rendering/gl-clear.html
@@ -19,8 +19,7 @@ Use of this source code is governed by a BSD-style license that can be
 <script>
 description("Test clear.");
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 var program = wtu.setupTexturedQuad(gl);
 
 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
diff --git a/content/canvas/test/webgl/conformance/resources/glsl-conformance-test.js b/content/canvas/test/webgl/conformance/resources/glsl-conformance-test.js
index 33b69f529486..a36d23e09155 100644
--- a/content/canvas/test/webgl/conformance/resources/glsl-conformance-test.js
+++ b/content/canvas/test/webgl/conformance/resources/glsl-conformance-test.js
@@ -35,11 +35,14 @@ var fShaderDB = {};
  *   succeed.
  * linkSuccess: true of link should succeed
  * passMsg: msg to describe success condition.
+ * render: if true render to unit quad. Green = success
  *
  */
 function runOneTest(gl, info) {
   var passMsg = info.passMsg
-  log(passMsg);
+  debug("test: " + passMsg);
+
+  var console = document.getElementById("console");
 
   if (info.vShaderSource === undefined) {
     if (info.vShaderId) {
@@ -58,9 +61,14 @@ function runOneTest(gl, info) {
     }
   }
 
+  var vLabel = (info.vShaderSource == defaultVertexShader ? "default" : "test") + " vertex shader";
+  var fLabel = (info.fShaderSource == defaultFragmentShader ? "default" : "test") + " fragment shader";
+
   var vSource = info.vShaderPrep ? info.vShaderPrep(info.vShaderSource) :
     info.vShaderSource;
 
+  wtu.addShaderSource(console, vLabel, vSource);
+
   // Reuse identical shaders so we test shared shader.
   var vShader = vShaderDB[vSource];
   if (!vShader) {
@@ -86,6 +94,8 @@ function runOneTest(gl, info) {
   var fSource = info.fShaderPrep ? info.fShaderPrep(info.fShaderSource) :
     info.fShaderSource;
 
+  wtu.addShaderSource(console, fLabel, fSource);
+
   // Reuse identical shaders so we test shared shader.
   var fShader = fShaderDB[fSource];
   if (!fShader) {
@@ -114,6 +124,8 @@ function runOneTest(gl, info) {
     var program = gl.createProgram();
     gl.attachShader(program, vShader);
     gl.attachShader(program, fShader);
+    gl.bindAttribLocation(program, 0, "vPosition");
+    gl.bindAttribLocation(program, 1, "texCoord0");
     gl.linkProgram(program);
     var linked = (gl.getProgramParameter(program, gl.LINK_STATUS) != 0);
     if (!linked) {
@@ -130,13 +142,30 @@ function runOneTest(gl, info) {
       return;
     }
   }
-  testPassed(passMsg);
+
+  if (!info.render) {
+    testPassed(passMsg);
+    return;
+  }
+
+  gl.useProgram(program);
+  wtu.setupUnitQuad(gl);
+  wtu.drawQuad(gl);
+
+  var div = document.createElement("div");
+  div.className = "testimages";
+  wtu.insertImage(div, "result", wtu.makeImage(gl.canvas));
+  div.appendChild(document.createElement('br'));
+  console.appendChild(div);
+  wtu.checkCanvas(gl, [0, 255, 0, 255], "should be green", 0);
 }
 
 function runTests(shaderInfos) {
   var wtu = WebGLTestUtils;
   var canvas = document.createElement('canvas');
-  var gl = wtu.create3DContext();
+  canvas.width = 32;
+  canvas.height = 32;
+  var gl = wtu.create3DContext(canvas);
   if (!gl) {
     testFailed("context does not exist");
     finishTest();
@@ -219,7 +248,7 @@ function getSuccess(msg) {
   testFailed("bad test description. Must have 'fail' or 'success'");
 }
 
-function runTest() {
+function setupTest() {
   var vShaderElem = document.getElementById('vertexShader');
   var vShaderSource = defaultVertexShader;
   var vShaderSuccess = true;
@@ -258,13 +287,34 @@ function runTest() {
     linkSuccess: linkSuccess,
     passMsg: passMsg
   };
-  description(passMsg);
+
+  return info;
+}
+
+function runTest() {
+  var info = setupTest();
+  description(info.passMsg);
   runTests([info]);
 }
 
+function runRenderTests(tests) {
+  for (var ii = 0; ii < tests.length; ++ii) {
+    tests[ii].render = true
+  }
+  runTests(tests);
+}
+
+function runRenderTest() {
+  var info = setupTest();
+  description(info.passMsg);
+  runRenderTests([info]);
+}
+
 return {
   runTest: runTest,
   runTests: runTests,
+  runRenderTest: runRenderTest,
+  runRenderTests: runRenderTests,
   loadExternalShaders: loadExternalShaders,
 
   none: false,
diff --git a/content/canvas/test/webgl/conformance/resources/glsl-generator.js b/content/canvas/test/webgl/conformance/resources/glsl-generator.js
index 195cadb35d9b..7b61cc5164e2 100644
--- a/content/canvas/test/webgl/conformance/resources/glsl-generator.js
+++ b/content/canvas/test/webgl/conformance/resources/glsl-generator.js
@@ -213,12 +213,6 @@ var generateTestShader = function(
   return shader;
 };
 
-var makeImage = function(canvas) {
-  var img = document.createElement('img');
-  img.src = canvas.toDataURL();
-  return img;
-};
-
 var runFeatureTest = function(params) {
   if (window.initNonKhronosFramework) {
     window.initNonKhronosFramework(false);
@@ -314,19 +308,19 @@ var runFeatureTest = function(params) {
           tests[ii]);
 
       debug("");
-      addShaderSource(
-          "reference vertex shader", referenceVertexShaderSource);
-      addShaderSource(
-          "reference fragment shader", referenceFragmentShaderSource);
-      addShaderSource(
-          "test vertex shader", testVertexShaderSource);
-      addShaderSource(
-          "test fragment shader", testFragmentShaderSource);
+      wtu.addShaderSource(
+          console, "reference vertex shader", referenceVertexShaderSource);
+      wtu.addShaderSource(
+          console, "reference fragment shader", referenceFragmentShaderSource);
+      wtu.addShaderSource(
+          console, "test vertex shader", testVertexShaderSource);
+      wtu.addShaderSource(
+          console, "test fragment shader", testFragmentShaderSource);
       debug("");
 
       var refData = draw(
           canvas, referenceVertexShaderSource, referenceFragmentShaderSource);
-      var refImg = makeImage(canvas);
+      var refImg = wtu.makeImage(canvas);
       if (ss == 0) {
         var testData = draw(
             canvas, testVertexShaderSource, referenceFragmentShaderSource);
@@ -334,7 +328,7 @@ var runFeatureTest = function(params) {
         var testData = draw(
             canvas, referenceVertexShaderSource, testFragmentShaderSource);
       }
-      var testImg = makeImage(canvas);
+      var testImg = wtu.makeImage(canvas);
 
       reportResults(refData, refImg, testData, testImg, shaderInfo.tolerance);
     }
@@ -342,36 +336,6 @@ var runFeatureTest = function(params) {
 
   finishTest();
 
-  function addShaderSource(label, source) {
-    var div = document.createElement("div");
-    var s = document.createElement("pre");
-    s.className = "shader-source";
-    s.style.display = "none";
-    var ol = document.createElement("ol");
-    //s.appendChild(document.createTextNode(source));
-    var lines = source.split("\n");
-    for (var ii = 0; ii < lines.length; ++ii) {
-      var line = lines[ii];
-      var li = document.createElement("li");
-      li.appendChild(document.createTextNode(line));
-      ol.appendChild(li);
-    }
-    s.appendChild(ol);
-    var l = document.createElement("a");
-    l.href = "show-shader-source";
-    l.appendChild(document.createTextNode(label));
-    l.addEventListener('click', function(event) {
-        if (event.preventDefault) {
-          event.preventDefault();
-        }
-        s.style.display = (s.style.display == 'none') ? 'block' : 'none';
-        return false;
-      }, false);
-    div.appendChild(l);
-    div.appendChild(s);
-    console.appendChild(div);
-  }
-
   function reportResults(refData, refImage, testData, testImage, tolerance) {
     var same = true;
     for (var yy = 0; yy < height; ++yy) {
@@ -395,26 +359,18 @@ var runFeatureTest = function(params) {
     var diffImg = null;
     if (!same) {
       ctx.putImageData(imgData, 0, 0);
-      diffImg = makeImage(canvas2d);
+      diffImg = wtu.makeImage(canvas2d);
     }
 
     var div = document.createElement("div");
     div.className = "testimages";
-    insertImg(div, "ref", refImg);
-    insertImg(div, "test", testImg);
+    wtu.insertImage(div, "ref", refImg);
+    wtu.insertImage(div, "test", testImg);
     if (diffImg) {
-      insertImg(div, "diff", diffImg);
+      wtu.insertImage(div, "diff", diffImg);
     }
     div.appendChild(document.createElement('br'));
 
-    function insertImg(element, caption, img) {
-      var div = document.createElement("div");
-      div.appendChild(img);
-      var label = document.createElement("div");
-      label.appendChild(document.createTextNode(caption));
-      div.appendChild(label);
-      element.appendChild(div);
-    }
 
     console.appendChild(div);
 
@@ -541,19 +497,19 @@ var runBasicTest = function(params) {
           test.test.subs);
 
       debug("");
-      addShaderSource(
-          "reference vertex shader", referenceVertexShaderSource);
-      addShaderSource(
-          "reference fragment shader", referenceFragmentShaderSource);
-      addShaderSource(
-          "test vertex shader", testVertexShaderSource);
-      addShaderSource(
-          "test fragment shader", testFragmentShaderSource);
+      wtu.addShaderSource(
+          console, "reference vertex shader", referenceVertexShaderSource);
+      wtu.addShaderSource(
+          console, "reference fragment shader", referenceFragmentShaderSource);
+      wtu.addShaderSource(
+          console, "test vertex shader", testVertexShaderSource);
+      wtu.addShaderSource(
+          console, "test fragment shader", testFragmentShaderSource);
       debug("");
 
       var refData = draw(
           canvas, referenceVertexShaderSource, referenceFragmentShaderSource);
-      var refImg = makeImage(canvas);
+      var refImg = wtu.makeImage(canvas);
       if (ss == 0) {
         var testData = draw(
             canvas, testVertexShaderSource, referenceFragmentShaderSource);
@@ -561,7 +517,7 @@ var runBasicTest = function(params) {
         var testData = draw(
             canvas, referenceVertexShaderSource, testFragmentShaderSource);
       }
-      var testImg = makeImage(canvas);
+      var testImg = wtu.makeImage(canvas);
 
       reportResults(refData, refImg, testData, testImg, shaderInfo.tolerance);
     }
@@ -569,36 +525,6 @@ var runBasicTest = function(params) {
 
   finishTest();
 
-  function addShaderSource(label, source) {
-    var div = document.createElement("div");
-    var s = document.createElement("pre");
-    s.className = "shader-source";
-    s.style.display = "none";
-    var ol = document.createElement("ol");
-    //s.appendChild(document.createTextNode(source));
-    var lines = source.split("\n");
-    for (var ii = 0; ii < lines.length; ++ii) {
-      var line = lines[ii];
-      var li = document.createElement("li");
-      li.appendChild(document.createTextNode(line));
-      ol.appendChild(li);
-    }
-    s.appendChild(ol);
-    var l = document.createElement("a");
-    l.href = "show-shader-source";
-    l.appendChild(document.createTextNode(label));
-    l.addEventListener('click', function(event) {
-        if (event.preventDefault) {
-          event.preventDefault();
-        }
-        s.style.display = (s.style.display == 'none') ? 'block' : 'none';
-        return false;
-      }, false);
-    div.appendChild(l);
-    div.appendChild(s);
-    console.appendChild(div);
-  }
-
   function reportResults(refData, refImage, testData, testImage, tolerance) {
     var same = true;
     for (var yy = 0; yy < height; ++yy) {
@@ -622,27 +548,18 @@ var runBasicTest = function(params) {
     var diffImg = null;
     if (!same) {
       ctx.putImageData(imgData, 0, 0);
-      diffImg = makeImage(canvas2d);
+      diffImg = wtu.makeImage(canvas2d);
     }
 
     var div = document.createElement("div");
     div.className = "testimages";
-    insertImg(div, "ref", refImg);
-    insertImg(div, "test", testImg);
+    wtu.insertImage(div, "ref", refImg);
+    wtu.insertImage(div, "test", testImg);
     if (diffImg) {
-      insertImg(div, "diff", diffImg);
+      wtu.insertImage(div, "diff", diffImg);
     }
     div.appendChild(document.createElement('br'));
 
-    function insertImg(element, caption, img) {
-      var div = document.createElement("div");
-      div.appendChild(img);
-      var label = document.createElement("div");
-      label.appendChild(document.createTextNode(caption));
-      div.appendChild(label);
-      element.appendChild(div);
-    }
-
     console.appendChild(div);
 
     if (!same) {
@@ -673,6 +590,374 @@ var runBasicTest = function(params) {
 
 };
 
+var runReferenceImageTest = function(params) {
+  if (window.initNonKhronosFramework) {
+    window.initNonKhronosFramework(false);
+  }
+
+  var wtu = WebGLTestUtils;
+  var gridRes = params.gridRes;
+  var vertexTolerance = params.tolerance || 0;
+  var fragmentTolerance = vertexTolerance;
+  if ('fragmentTolerance' in params)
+    fragmentTolerance = params.fragmentTolerance || 0;
+
+  description("Testing GLSL feature: " + params.feature);
+
+  var width = 32;
+  var height = 32;
+
+  var console = document.getElementById("console");
+  var canvas = document.createElement('canvas');
+  canvas.width = width;
+  canvas.height = height;
+  var gl = wtu.create3DContext(canvas, { antialias: false });
+  if (!gl) {
+    testFailed("context does not exist");
+    finishTest();
+    return;
+  }
+
+  var canvas2d = document.createElement('canvas');
+  canvas2d.width = width;
+  canvas2d.height = height;
+  var ctx = canvas2d.getContext("2d");
+  var imgData = ctx.getImageData(0, 0, width, height);
+
+  var shaderInfos = [
+    { type: "vertex",
+      input: "color",
+      output: "vColor",
+      vertexShaderTemplate: vertexShaderTemplate,
+      fragmentShaderTemplate: baseFragmentShader,
+      tolerance: vertexTolerance
+    },
+    { type: "fragment",
+      input: "vColor",
+      output: "gl_FragColor",
+      vertexShaderTemplate: baseVertexShader,
+      fragmentShaderTemplate: fragmentShaderTemplate,
+      tolerance: fragmentTolerance
+    }
+  ];
+  for (var ss = 0; ss < shaderInfos.length; ++ss) {
+    var shaderInfo = shaderInfos[ss];
+    var tests = params.tests;
+    var testTypes = params.emuFuncs || (params.bvecTest ? bvecTypes : types);
+    // Test vertex shaders
+    for (var ii = 0; ii < tests.length; ++ii) {
+      var type = testTypes[ii];
+      var isVertex = (ss == 0);
+      debug("");
+      var str = replaceParams(params.testFunc, {
+        func: params.feature,
+        type: type.type,
+        arg0: type.type
+      });
+      debug("Testing: " + str + " in " + shaderInfo.type + " shader");
+
+      var referenceVertexShaderSource = generateReferenceShader(
+          shaderInfo,
+          shaderInfo.vertexShaderTemplate,
+          params,
+          type,
+          tests[ii].source);
+      var referenceFragmentShaderSource = generateReferenceShader(
+          shaderInfo,
+          shaderInfo.fragmentShaderTemplate,
+          params,
+          type,
+          tests[ii].source);
+      var testVertexShaderSource = generateTestShader(
+          shaderInfo,
+          shaderInfo.vertexShaderTemplate,
+          params,
+          tests[ii].source);
+      var testFragmentShaderSource = generateTestShader(
+          shaderInfo,
+          shaderInfo.fragmentShaderTemplate,
+          params,
+          tests[ii].source);
+      var referenceTexture = generateReferenceTexture(
+          gl,
+          tests[ii].generator,
+          isVertex ? gridRes : width,
+          isVertex ? gridRes : height,
+          isVertex);
+
+      debug("");
+      wtu.addShaderSource(
+          console, "test vertex shader", testVertexShaderSource);
+      wtu.addShaderSource(
+          console, "test fragment shader", testFragmentShaderSource);
+      debug("");
+      var refData = drawReferenceImage(canvas, referenceTexture, isVertex);
+      var refImg = wtu.makeImage(canvas);
+      if (isVertex) {
+        var testData = draw(
+            canvas, testVertexShaderSource, referenceFragmentShaderSource);
+      } else {
+        var testData = draw(
+            canvas, referenceVertexShaderSource, testFragmentShaderSource);
+      }
+      var testImg = wtu.makeImage(canvas);
+      var testTolerance = shaderInfo.tolerance;
+      // Provide per-test tolerance so that we can increase it only for those desired.
+      if ('tolerance' in tests[ii])
+        testTolerance = tests[ii].tolerance || 0;
+      reportResults(refData, refImg, testData, testImg, testTolerance);
+    }
+  }
+
+  finishTest();
+
+  function reportResults(refData, refImage, testData, testImage, tolerance) {
+    var same = true;
+    for (var yy = 0; yy < height; ++yy) {
+      for (var xx = 0; xx < width; ++xx) {
+        var offset = (yy * width + xx) * 4;
+        var imgOffset = ((height - yy - 1) * width + xx) * 4;
+        imgData.data[imgOffset + 0] = 0;
+        imgData.data[imgOffset + 1] = 0;
+        imgData.data[imgOffset + 2] = 0;
+        imgData.data[imgOffset + 3] = 255;
+        if (Math.abs(refData[offset + 0] - testData[offset + 0]) > tolerance ||
+            Math.abs(refData[offset + 1] - testData[offset + 1]) > tolerance ||
+            Math.abs(refData[offset + 2] - testData[offset + 2]) > tolerance ||
+            Math.abs(refData[offset + 3] - testData[offset + 3]) > tolerance) {
+          console.appendChild(document.createTextNode('at (' + xx + ',' + yy + '): ref=(' +
+                                                      refData[offset + 0] + ',' +
+                                                      refData[offset + 1] + ',' +
+                                                      refData[offset + 2] + ',' +
+                                                      refData[offset + 3] + ')  test=(' +
+                                                      testData[offset + 0] + ',' +
+                                                      testData[offset + 1] + ',' +
+                                                      testData[offset + 2] + ',' +
+                                                      testData[offset + 3] + ')'));
+          console.appendChild(document.createElement('br'));          
+
+
+
+          imgData.data[imgOffset] = 255;
+          same = false;
+        }
+      }
+    }
+
+    var diffImg = null;
+    if (!same) {
+      ctx.putImageData(imgData, 0, 0);
+      diffImg = wtu.makeImage(canvas2d);
+    }
+
+    var div = document.createElement("div");
+    div.className = "testimages";
+    wtu.insertImage(div, "ref", refImg);
+    wtu.insertImage(div, "test", testImg);
+    if (diffImg) {
+      wtu.insertImage(div, "diff", diffImg);
+    }
+    div.appendChild(document.createElement('br'));
+
+    console.appendChild(div);
+
+    if (!same) {
+      testFailed("images are different");
+    } else {
+      testPassed("images are the same");
+    }
+
+    console.appendChild(document.createElement('hr'));
+  }
+
+  function draw(canvas, vsSource, fsSource) {
+    var program = wtu.loadProgram(gl, vsSource, fsSource, testFailed);
+
+    var posLoc = gl.getAttribLocation(program, "aPosition");
+    WebGLTestUtils.setupQuad(gl, gridRes, posLoc);
+
+    gl.useProgram(program);
+    gl.clearColor(0, 0, 1, 1);
+    gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
+    gl.drawElements(gl.TRIANGLES, gridRes * gridRes * 6, gl.UNSIGNED_SHORT, 0);
+    wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no errors from draw");
+
+    var img = new Uint8Array(width * height * 4);
+    gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, img);
+    return img;
+  }
+
+  function drawReferenceImage(canvas, texture, isVertex) {
+    var program;
+    if (isVertex) {
+      var halfTexel = 0.5 / (1.0 + gridRes);
+      program = WebGLTestUtils.setupTexturedQuadWithTexCoords(
+        gl, [halfTexel, halfTexel], [1.0 - halfTexel, 1.0 - halfTexel]);
+    } else {
+      program = WebGLTestUtils.setupTexturedQuad(gl);
+    }
+
+    gl.activeTexture(gl.TEXTURE0);
+    gl.bindTexture(gl.TEXTURE_2D, texture);
+    var texLoc = gl.getUniformLocation(program, "tex");
+    gl.uniform1i(texLoc, 0);
+    wtu.drawQuad(gl);
+    wtu.glErrorShouldBe(gl, gl.NO_ERROR, "no errors from draw");
+
+    var img = new Uint8Array(width * height * 4);
+    gl.readPixels(0, 0, width, height, gl.RGBA, gl.UNSIGNED_BYTE, img);
+    return img;
+  }
+
+  /**
+   * Creates and returns a texture containing the reference image for
+   * the function being tested. Exactly how the function is evaluated,
+   * and the size of the returned texture, depends on whether we are
+   * testing a vertex or fragment shader. If a fragment shader, the
+   * function is evaluated at the pixel centers. If a vertex shader,
+   * the function is evaluated at the triangle's vertices, and the
+   * resulting texture must be offset by half a texel during
+   * rendering.
+   *
+   * @param {!WebGLRenderingContext} gl The WebGLRenderingContext to use to generate texture objects.
+   * @param {!function(number,number,number,number): !Array.<number>} generator The reference image generator function.
+   * @param {number} width The width of the texture to generate if testing a fragment shader; the grid resolution if testing a vertex shader.
+   * @param {number} height The height of the texture to generate if testing a fragment shader; the grid resolution if testing a vertex shader.
+   * @param {boolean} isVertex True if generating a reference image for a vertex shader; false if for a fragment shader.
+   * @return {!WebGLTexture} The texture object that was generated.
+   */
+  function generateReferenceTexture(
+    gl,
+    generator,
+    width,
+    height,
+    isVertex) {
+
+    // Note: the math in this function must match that in the vertex and
+    // fragment shader templates above.
+    function computeTexCoord(x) {
+      return x * 0.5 + 0.5;
+    }
+
+    function computeColor(texCoordX, texCoordY) {
+      return [ texCoordX,
+               texCoordY,
+               texCoordX * texCoordY,
+               (1.0 - texCoordX) * texCoordY * 0.5 + 0.5 ];
+    }
+
+    function clamp(value, minVal, maxVal) {
+      return Math.max(minVal, Math.min(value, maxVal));
+    }
+
+    // Evaluates the function at clip coordinates (px,py), storing the
+    // result in the array "pixel". Each channel's result is clamped
+    // between 0 and 255.
+    function evaluateAtClipCoords(px, py, pixel) {
+      var tcx = computeTexCoord(px);
+      var tcy = computeTexCoord(py);
+
+      var color = computeColor(tcx, tcy);
+
+      var output = generator(color[0], color[1], color[2], color[3]);
+
+      // Multiply by 256 to get even distribution for all values between 0 and 1.
+      // Use rounding rather than truncation to more closely match the GPU's behavior.
+      pixel[0] = clamp(Math.round(256 * output[0]), 0, 255);
+      pixel[1] = clamp(Math.round(256 * output[1]), 0, 255);
+      pixel[2] = clamp(Math.round(256 * output[2]), 0, 255);
+      pixel[3] = clamp(Math.round(256 * output[3]), 0, 255);
+    }
+
+    function fillFragmentReference() {
+      var data = new Uint8Array(4 * width * height);
+
+      var horizTexel = 1.0 / width;
+      var vertTexel = 1.0 / height;
+      var halfHorizTexel = 0.5 * horizTexel;
+      var halfVertTexel = 0.5 * vertTexel;
+
+      var pixel = new Array(4);
+
+      for (var yi = 0; yi < height; ++yi) {
+        for (var xi = 0; xi < width; ++xi) {
+          // The function must be evaluated at pixel centers.
+
+          // Compute desired position in clip space
+          var px = -1.0 + 2.0 * (halfHorizTexel + xi * horizTexel);
+          var py = -1.0 + 2.0 * (halfVertTexel + yi * vertTexel);
+
+          evaluateAtClipCoords(px, py, pixel);
+          var index = 4 * (width * yi + xi);
+          data[index + 0] = pixel[0];
+          data[index + 1] = pixel[1];
+          data[index + 2] = pixel[2];
+          data[index + 3] = pixel[3];
+        }
+      }
+
+      gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0,
+                    gl.RGBA, gl.UNSIGNED_BYTE, data);
+    }
+
+    function fillVertexReference() {
+      // We generate a texture which contains the evaluation of the
+      // function at the vertices of the triangle mesh. It is expected
+      // that the width and the height are identical, and equivalent
+      // to the grid resolution.
+      if (width != height) {
+        throw "width and height must be equal";
+      }
+
+      var texSize = 1 + width;
+      var data = new Uint8Array(4 * texSize * texSize);
+
+      var step = 2.0 / width;
+
+      var pixel = new Array(4);
+
+      for (var yi = 0; yi < texSize; ++yi) {
+        for (var xi = 0; xi < texSize; ++xi) {
+          // The function is evaluated at the triangles' vertices.
+
+          // Compute desired position in clip space
+          var px = -1.0 + (xi * step);
+          var py = -1.0 + (yi * step);
+
+          evaluateAtClipCoords(px, py, pixel);
+          var index = 4 * (texSize * yi + xi);
+          data[index + 0] = pixel[0];
+          data[index + 1] = pixel[1];
+          data[index + 2] = pixel[2];
+          data[index + 3] = pixel[3];
+        }
+      }
+
+      gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, texSize, texSize, 0,
+                    gl.RGBA, gl.UNSIGNED_BYTE, data);
+    }
+
+    //----------------------------------------------------------------------
+    // Body of generateReferenceTexture
+    //
+
+    var texture = gl.createTexture();
+    gl.bindTexture(gl.TEXTURE_2D, texture);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
+    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
+
+    if (isVertex) {
+      fillVertexReference();
+    } else {
+      fillFragmentReference();
+    }
+
+    return texture;
+  }
+};
+
 return {
   /**
    * runs a bunch of GLSL tests using the passed in parameters
@@ -733,7 +1018,7 @@ return {
    *    fragment-only tolerance will override the shared tolerance for 
    *    fragment shaders if both are specified. Fragment shaders usually
    *    use mediump float precision so they sometimes require higher tolerance
-   *    than vertex shaders which use highp.
+   *    than vertex shaders which use highp by default.
    */
   runFeatureTest: runFeatureTest,
 
@@ -813,6 +1098,58 @@ return {
    */
   runBasicTest: runBasicTest,
 
+  /**
+   * Runs a bunch of GLSL tests using the passed in parameters. The
+   * expected results are computed as a reference image in JavaScript
+   * instead of on the GPU. The parameters are:
+   *
+   * feature:
+   *    the name of the function being tested (eg, sin, dot,
+   *    normalize)
+   *
+   * testFunc:
+   *    The prototype of function to be tested not including the
+   *    return type.
+   *
+   * args:
+   *    The arguments to the function
+   *
+   * gridRes: (optional)
+   *    The resolution of the mesh to generate. The default is a
+   *    1x1 grid but many vertex shaders need a higher resolution
+   *    otherwise the only values passed in are the 4 corners
+   *    which often have the same value.
+   *
+   * tests:
+   *    Array of tests. It is assumed the tests are for float, vec2,
+   *    vec3, vec4 in that order. For each test the following
+   *    parameters are expected:
+   *
+   *       source: the GLSL source code for the tests
+   *
+   *       generator: a JavaScript function taking four parameters
+   *       which evaluates the same function as the GLSL source,
+   *       returning its result as a newly allocated array.
+   *
+   *       tolerance: (optional) a per-test tolerance.
+   *
+   * extra: (optional)
+   *    Extra GLSL code inserted at the top of each test's shader.
+   * 
+   * tolerance: (optional)
+   *    Allow some tolerance in the comparisons. The tolerance is applied to 
+   *    both vertex and fragment shaders. The default tolerance is 0, meaning 
+   *    the values have to be identical.
+   *
+   * fragmentTolerance: (optional)
+   *    Specify a tolerance which only applies to fragment shaders. The 
+   *    fragment-only tolerance will override the shared tolerance for 
+   *    fragment shaders if both are specified. Fragment shaders usually
+   *    use mediump float precision so they sometimes require higher tolerance
+   *    than vertex shaders which use highp.
+   */
+  runReferenceImageTest: runReferenceImageTest,
+
   none: false
 };
 
diff --git a/content/canvas/test/webgl/conformance/resources/webgl-test-utils.js b/content/canvas/test/webgl/conformance/resources/webgl-test-utils.js
index 4545cdc65831..97294cac9e84 100644
--- a/content/canvas/test/webgl/conformance/resources/webgl-test-utils.js
+++ b/content/canvas/test/webgl/conformance/resources/webgl-test-utils.js
@@ -129,14 +129,26 @@ var setupSimpleTextureFragmentShader = function(gl) {
 /**
  * Creates a program, attaches shaders, binds attrib locations, links the
  * program and calls useProgram.
- * @param {!Array.<!WebGLShader>} shaders The shaders to attach .
+ * @param {!Array.<!WebGLShader|string>} shaders The shaders to
+ *        attach, or the source, or the id of a script to get
+ *        the source from.
  * @param {!Array.<string>} opt_attribs The attribs names.
  * @param {!Array.<number>} opt_locations The locations for the attribs.
  */
 var setupProgram = function(gl, shaders, opt_attribs, opt_locations) {
+  var realShaders = [];
   var program = gl.createProgram();
   for (var ii = 0; ii < shaders.length; ++ii) {
-    gl.attachShader(program, shaders[ii]);
+    var shader = shaders[ii];
+    if (typeof shader == 'string') {
+      var element = document.getElementById(shader);
+      if (element) {
+        shader = loadShaderFromScript(gl, shader);
+      } else {
+        shader = loadShader(gl, shader, ii ? gl.FRAGMENT_SHADER : gl.VERTEX_SHADER);
+      }
+    }
+    gl.attachShader(program, shader);
   }
   if (opt_attribs) {
     for (var ii = 0; ii < opt_attribs.length; ++ii) {
@@ -201,6 +213,25 @@ var setupSimpleTextureProgram = function(
  *      created.
  */
 var setupUnitQuad = function(gl, opt_positionLocation, opt_texcoordLocation) {
+  return setupUnitQuadWithTexCoords(gl, [ 0.0, 0.0 ], [ 1.0, 1.0 ],
+                                    opt_positionLocation, opt_texcoordLocation);
+};
+
+/**
+ * Creates buffers for a textured unit quad with specified lower left
+ * and upper right texture coordinates, and attaches them to vertex
+ * attribs.
+ * @param {!WebGLContext} gl The WebGLContext to use.
+ * @param {!Array.<number>} lowerLeftTexCoords The texture coordinates for the lower left corner.
+ * @param {!Array.<number>} upperRightTexCoords The texture coordinates for the upper right corner.
+ * @param {number} opt_positionLocation The attrib location for position.
+ * @param {number} opt_texcoordLocation The attrib location for texture coords.
+ * @return {!Array.<WebGLBuffer>} The buffer objects that were
+ *      created.
+ */
+var setupUnitQuadWithTexCoords = function(
+    gl, lowerLeftTexCoords, upperRightTexCoords,
+    opt_positionLocation, opt_texcoordLocation) {
   opt_positionLocation = opt_positionLocation || 0;
   opt_texcoordLocation = opt_texcoordLocation || 1;
   var objects = [];
@@ -218,15 +249,20 @@ var setupUnitQuad = function(gl, opt_positionLocation, opt_texcoordLocation) {
   gl.vertexAttribPointer(opt_positionLocation, 3, gl.FLOAT, false, 0, 0);
   objects.push(vertexObject);
 
+  var llx = lowerLeftTexCoords[0];
+  var lly = lowerLeftTexCoords[1];
+  var urx = upperRightTexCoords[0];
+  var ury = upperRightTexCoords[1];
+
   var vertexObject = gl.createBuffer();
   gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
   gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([
-      1.0, 1.0,
-      0.0, 1.0,
-      0.0, 0.0,
-      1.0, 1.0,
-      0.0, 0.0,
-      1.0, 0.0]), gl.STATIC_DRAW);
+      urx, ury,
+      llx, ury,
+      llx, lly,
+      urx, ury,
+      llx, lly,
+      urx, lly]), gl.STATIC_DRAW);
   gl.enableVertexAttribArray(opt_texcoordLocation);
   gl.vertexAttribPointer(opt_texcoordLocation, 2, gl.FLOAT, false, 0, 0);
   objects.push(vertexObject);
@@ -249,9 +285,29 @@ var setupTexturedQuad = function(
 };
 
 /**
- * Creates a unit quad with only positions of a given rez
+ * Creates a program and buffers for rendering a textured quad with
+ * specified lower left and upper right texture coordinates.
  * @param {!WebGLContext} gl The WebGLContext to use.
- * @param {number} gridRez The resolution of the mesh grid.
+ * @param {!Array.<number>} lowerLeftTexCoords The texture coordinates for the lower left corner.
+ * @param {!Array.<number>} upperRightTexCoords The texture coordinates for the upper right corner.
+ * @param {number} opt_positionLocation The attrib location for position.
+ * @param {number} opt_texcoordLocation The attrib location for texture coords.
+ * @return {!WebGLProgram}
+ */
+var setupTexturedQuadWithTexCoords = function(
+    gl, lowerLeftTexCoords, upperRightTexCoords,
+    opt_positionLocation, opt_texcoordLocation) {
+  var program = setupSimpleTextureProgram(
+      gl, opt_positionLocation, opt_texcoordLocation);
+  setupUnitQuadWithTexCoords(gl, lowerLeftTexCoords, upperRightTexCoords,
+                             opt_positionLocation, opt_texcoordLocation);
+  return program;
+};
+
+/**
+ * Creates a unit quad with only positions of a given resolution.
+ * @param {!WebGLContext} gl The WebGLContext to use.
+ * @param {number} gridRes The resolution of the mesh grid, expressed in the number of triangles across and down.
  * @param {number} opt_positionLocation The attrib location for position.
  */
 var setupQuad = function (
@@ -455,20 +511,27 @@ var loadTexture = function(gl, url, callback) {
 
 /**
  * Creates a webgl context.
- * @param {!Canvas} opt_canvas The canvas tag to get context from. If one is not
- *     passed in one will be created.
+ * @param {!Canvas|string} opt_canvas The canvas tag to get
+ *     context from. If one is not passed in one will be
+ *     created. If it's a string it's assumed to be the id of a
+ *     canvas.
  * @return {!WebGLContext} The created context.
  */
 var create3DContext = function(opt_canvas, opt_attributes) {
   opt_canvas = opt_canvas || document.createElement("canvas");
+  if (typeof opt_canvas == 'string') {
+    opt_canvas = document.getElementById(opt_canvas);
+  }
   var context = null;
-  try {
-    context = opt_canvas.getContext("webgl", opt_attributes);
-  } catch(e) {}
-  if (!context) {
+  var names = ["webgl", "experimental-webgl"];
+  for (var i = 0; i < names.length; ++i) {
     try {
-      context = opt_canvas.getContext("experimental-webgl", opt_attributes);
-    } catch(e) {}
+      context = opt_canvas.getContext(names[i], opt_attributes);
+    } catch (e) {
+    }
+    if (context) {
+      break;
+    }
   }
   if (!context) {
     testFailed("Unable to fetch WebGL rendering context for Canvas");
@@ -1159,7 +1222,53 @@ var getUrlArguments = function() {
   return args;
 };
 
+var makeImage = function(canvas) {
+  var img = document.createElement('img');
+  img.src = canvas.toDataURL();
+  return img;
+};
+
+var insertImage = function(element, caption, img) {
+  var div = document.createElement("div");
+  div.appendChild(img);
+  var label = document.createElement("div");
+  label.appendChild(document.createTextNode(caption));
+  div.appendChild(label);
+   element.appendChild(div);
+};
+
+var addShaderSource = function(element, label, source) {
+  var div = document.createElement("div");
+  var s = document.createElement("pre");
+  s.className = "shader-source";
+  s.style.display = "none";
+  var ol = document.createElement("ol");
+  //s.appendChild(document.createTextNode(source));
+  var lines = source.split("\n");
+  for (var ii = 0; ii < lines.length; ++ii) {
+    var line = lines[ii];
+    var li = document.createElement("li");
+    li.appendChild(document.createTextNode(line));
+    ol.appendChild(li);
+  }
+  s.appendChild(ol);
+  var l = document.createElement("a");
+  l.href = "show-shader-source";
+  l.appendChild(document.createTextNode(label));
+  l.addEventListener('click', function(event) {
+      if (event.preventDefault) {
+        event.preventDefault();
+      }
+      s.style.display = (s.style.display == 'none') ? 'block' : 'none';
+      return false;
+    }, false);
+  div.appendChild(l);
+  div.appendChild(s);
+  element.appendChild(div);
+}
+
 return {
+  addShaderSource: addShaderSource,
   create3DContext: create3DContext,
   create3DContextWithWrapperThatThrowsOnGLError:
     create3DContextWithWrapperThatThrowsOnGLError,
@@ -1175,6 +1284,7 @@ return {
   glEnumToString: glEnumToString,
   glErrorShouldBe: glErrorShouldBe,
   fillTexture: fillTexture,
+  insertImage: insertImage,
   loadImageAsync: loadImageAsync,
   loadImagesAsync: loadImagesAsync,
   loadProgram: loadProgram,
@@ -1191,6 +1301,7 @@ return {
   loadTexture: loadTexture,
   log: log,
   loggingOff: loggingOff,
+  makeImage: makeImage,
   error: error,
   setupProgram: setupProgram,
   setupQuad: setupQuad,
@@ -1198,7 +1309,9 @@ return {
   setupSimpleTextureProgram: setupSimpleTextureProgram,
   setupSimpleTextureVertexShader: setupSimpleTextureVertexShader,
   setupTexturedQuad: setupTexturedQuad,
+  setupTexturedQuadWithTexCoords: setupTexturedQuadWithTexCoords,
   setupUnitQuad: setupUnitQuad,
+  setupUnitQuadWithTexCoords: setupUnitQuadWithTexCoords,
   setupWebGLWithShaders: setupWebGLWithShaders,
   startsWith: startsWith,
   shouldGenerateGLError: shouldGenerateGLError,
diff --git a/content/canvas/test/webgl/conformance/resources/webgl-test.js b/content/canvas/test/webgl/conformance/resources/webgl-test.js
index a2ff53c9fe0e..fa1368258901 100644
--- a/content/canvas/test/webgl/conformance/resources/webgl-test.js
+++ b/content/canvas/test/webgl/conformance/resources/webgl-test.js
@@ -42,14 +42,16 @@ function create3DContext(canvas, attributes)
 {
     if (!canvas)
         canvas = document.createElement("canvas");
+    var names = ["webgl", "experimental-webgl"];
     var context = null;
-    try {
-        context = canvas.getContext("webgl", attributes);
-    } catch(e) {}
-    if (!context) {
-        try {
-            context = canvas.getContext("experimental-webgl", attributes);
-        } catch(e) {}
+    for (var i = 0; i < names.length; ++i) {
+      try {
+        context = canvas.getContext(names[i], attributes);
+      } catch (e) {
+      }
+      if (context) {
+        break;
+      }
     }
     if (!context) {
         throw "Unable to fetch WebGL rendering context for Canvas";
diff --git a/content/canvas/test/webgl/conformance/shaders/00_shaders.txt b/content/canvas/test/webgl/conformance/shaders/00_shaders.txt
deleted file mode 100644
index 32dfe2ded8f1..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/00_shaders.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-implicit/00_shaders.txt
-misc/00_shaders.txt
-reserved/00_shaders.txt
-
diff --git a/content/canvas/test/webgl/conformance/shaders/00_test_list.txt b/content/canvas/test/webgl/conformance/shaders/00_test_list.txt
deleted file mode 100755
index 4394d1d95fe4..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/00_test_list.txt
+++ /dev/null
@@ -1,2 +0,0 @@
-glsl-features/00_test_list.txt
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/00_test_list.txt b/content/canvas/test/webgl/conformance/shaders/glsl-features/00_test_list.txt
deleted file mode 100755
index 28eea83966a3..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/00_test_list.txt
+++ /dev/null
@@ -1,48 +0,0 @@
-../../glsl-features.html?feature=base
-
-../../glsl-features.html?feature=abs-frag&reffs=shaders/glsl-features/abs-ref.frag&testfs=shaders/glsl-features/abs.frag
-../../glsl-features.html?feature=abs-frag-vec2&reffs=shaders/glsl-features/abs-vec2-ref.frag&testfs=shaders/glsl-features/abs-vec2.frag
-../../glsl-features.html?feature=abs-frag-vec3&reffs=shaders/glsl-features/abs-vec3-ref.frag&testfs=shaders/glsl-features/abs-vec3.frag
-../../glsl-features.html?feature=abs-frag-vec4&reffs=shaders/glsl-features/abs-vec4-ref.frag&testfs=shaders/glsl-features/abs-vec4.frag
-../../glsl-features.html?feature=abs-vert&refvs=shaders/glsl-features/abs-ref.vert&testvs=shaders/glsl-features/abs.vert
-../../glsl-features.html?feature=abs-vert-vec2&refvs=shaders/glsl-features/abs-vec2-ref.vert&testvs=shaders/glsl-features/abs-vec2.vert
-../../glsl-features.html?feature=abs-vert-vec3&refvs=shaders/glsl-features/abs-vec3-ref.vert&testvs=shaders/glsl-features/abs-vec3.vert
-../../glsl-features.html?feature=abs-vert-vec4&refvs=shaders/glsl-features/abs-vec4-ref.vert&testvs=shaders/glsl-features/abs-vec4.vert
-
-../../glsl-features.html?feature=sign-frag&reffs=shaders/glsl-features/sign-ref.frag&testfs=shaders/glsl-features/sign.frag
-../../glsl-features.html?feature=sign-frag-vec2&reffs=shaders/glsl-features/sign-vec2-ref.frag&testfs=shaders/glsl-features/sign-vec2.frag
-../../glsl-features.html?feature=sign-frag-vec3&reffs=shaders/glsl-features/sign-vec3-ref.frag&testfs=shaders/glsl-features/sign-vec3.frag
-../../glsl-features.html?feature=sign-frag-vec4&reffs=shaders/glsl-features/sign-vec4-ref.frag&testfs=shaders/glsl-features/sign-vec4.frag
-../../glsl-features.html?feature=sign-vert&refvs=shaders/glsl-features/sign-ref.vert&testvs=shaders/glsl-features/sign.vert
-../../glsl-features.html?feature=sign-vert-vec2&refvs=shaders/glsl-features/sign-vec2-ref.vert&testvs=shaders/glsl-features/sign-vec2.vert
-../../glsl-features.html?feature=sign-vert-vec3&refvs=shaders/glsl-features/sign-vec3-ref.vert&testvs=shaders/glsl-features/sign-vec3.vert
-../../glsl-features.html?feature=sign-vert-vec4&refvs=shaders/glsl-features/sign-vec4-ref.vert&testvs=shaders/glsl-features/sign-vec4.vert
-
-../../glsl-features.html?feature=floor-frag&reffs=shaders/glsl-features/floor-ref.frag&testfs=shaders/glsl-features/floor.frag
-../../glsl-features.html?feature=floor-frag-vec2&reffs=shaders/glsl-features/floor-vec2-ref.frag&testfs=shaders/glsl-features/floor-vec2.frag
-../../glsl-features.html?feature=floor-frag-vec3&reffs=shaders/glsl-features/floor-vec3-ref.frag&testfs=shaders/glsl-features/floor-vec3.frag
-../../glsl-features.html?feature=floor-frag-vec4&reffs=shaders/glsl-features/floor-vec4-ref.frag&testfs=shaders/glsl-features/floor-vec4.frag
-../../glsl-features.html?res=8&feature=floor-vert&refvs=shaders/glsl-features/floor-ref.vert&testvs=shaders/glsl-features/floor.vert
-../../glsl-features.html?res=8&feature=floor-vert-vec2&refvs=shaders/glsl-features/floor-vec2-ref.vert&testvs=shaders/glsl-features/floor-vec2.vert
-../../glsl-features.html?res=8&feature=floor-vert-vec3&refvs=shaders/glsl-features/floor-vec3-ref.vert&testvs=shaders/glsl-features/floor-vec3.vert
-../../glsl-features.html?res=8&feature=floor-vert-vec4&refvs=shaders/glsl-features/floor-vec4-ref.vert&testvs=shaders/glsl-features/floor-vec4.vert
-
-../../glsl-features.html?feature=ceil-frag&reffs=shaders/glsl-features/ceil-ref.frag&testfs=shaders/glsl-features/ceil.frag
-../../glsl-features.html?feature=ceil-frag-vec2&reffs=shaders/glsl-features/ceil-vec2-ref.frag&testfs=shaders/glsl-features/ceil-vec2.frag
-../../glsl-features.html?feature=ceil-frag-vec3&reffs=shaders/glsl-features/ceil-vec3-ref.frag&testfs=shaders/glsl-features/ceil-vec3.frag
-../../glsl-features.html?feature=ceil-frag-vec4&reffs=shaders/glsl-features/ceil-vec4-ref.frag&testfs=shaders/glsl-features/ceil-vec4.frag
-../../glsl-features.html?res=8&feature=ceil-vert&refvs=shaders/glsl-features/ceil-ref.vert&testvs=shaders/glsl-features/ceil.vert
-../../glsl-features.html?res=8&feature=ceil-vert-vec2&refvs=shaders/glsl-features/ceil-vec2-ref.vert&testvs=shaders/glsl-features/ceil-vec2.vert
-../../glsl-features.html?res=8&feature=ceil-vert-vec3&refvs=shaders/glsl-features/ceil-vec3-ref.vert&testvs=shaders/glsl-features/ceil-vec3.vert
-../../glsl-features.html?res=8&feature=ceil-vert-vec4&refvs=shaders/glsl-features/ceil-vec4-ref.vert&testvs=shaders/glsl-features/ceil-vec4.vert
-
-../../glsl-features.html?feature=fract-frag&reffs=shaders/glsl-features/fract-ref.frag&testfs=shaders/glsl-features/fract.frag
-../../glsl-features.html?feature=fract-frag-vec2&reffs=shaders/glsl-features/fract-vec2-ref.frag&testfs=shaders/glsl-features/fract-vec2.frag
-../../glsl-features.html?feature=fract-frag-vec3&reffs=shaders/glsl-features/fract-vec3-ref.frag&testfs=shaders/glsl-features/fract-vec3.frag
-../../glsl-features.html?feature=fract-frag-vec4&reffs=shaders/glsl-features/fract-vec4-ref.frag&testfs=shaders/glsl-features/fract-vec4.frag
-../../glsl-features.html?res=8&feature=fract-vert&refvs=shaders/glsl-features/fract-ref.vert&testvs=shaders/glsl-features/fract.vert
-../../glsl-features.html?res=8&feature=fract-vert-vec2&refvs=shaders/glsl-features/fract-vec2-ref.vert&testvs=shaders/glsl-features/fract-vec2.vert
-../../glsl-features.html?res=8&feature=fract-vert-vec3&refvs=shaders/glsl-features/fract-vec3-ref.vert&testvs=shaders/glsl-features/fract-vec3.vert
-../../glsl-features.html?res=8&feature=fract-vert-vec4&refvs=shaders/glsl-features/fract-vec4-ref.vert&testvs=shaders/glsl-features/fract-vec4.vert
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-ref.frag
deleted file mode 100755
index 4efcd9035f8a..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-ref.frag
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float abs_emu(float value) {
-  return value >= 0.0 ? value : -value;
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-     abs_emu(vTexcoord.x * 2.0 - 1.0),
-     abs_emu(vTexcoord.y * 2.0 - 1.0),
-     0,
-     1);
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-ref.vert
deleted file mode 100755
index 2e618f88b9f3..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-ref.vert
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float abs_emu(float value) {
-  return value >= 0.0 ? value : -value;
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-     abs(color.x * 2.0 - 1.0),
-     0,
-     abs(color.y * 2.0 - 1.0),
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2-ref.frag
deleted file mode 100755
index 038567f88c8e..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2-ref.frag
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float abs_emu1(float value) {
-  return value >= 0.0 ? value : -value;
-}
-
-vec2 abs_emu(vec2 value) {
-  return vec2(
-      abs_emu1(value.x),
-      abs_emu1(value.y));
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-     0,
-     abs_emu(vColor.xy * 2.0 - vec2(1, 1)),
-     1);
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2-ref.vert
deleted file mode 100755
index 80ea90e6f3ff..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2-ref.vert
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float abs_emu1(float value) {
-  return value >= 0.0 ? value : -value;
-}
-
-vec2 abs_emu(vec2 value) {
-  return vec2(
-    abs_emu1(value.x),
-    abs_emu1(value.y));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-     abs(vColor.xy * 2.0 - vec2(1, 1)),
-     0,
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2.frag
deleted file mode 100755
index 005d2f8207d2..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-     0,
-     abs(vColor.xy * 2.0 - vec2(1, 1)),
-     1);
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2.vert
deleted file mode 100755
index 818e97d96c9f..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec2.vert
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-     abs(vColor.xy * 2.0 - vec2(1, 1)),
-     0,
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3-ref.frag
deleted file mode 100755
index 826697392042..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3-ref.frag
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float abs_emu1(float value) {
-  return value >= 0.0 ? value : -value;
-}
-
-vec3 abs_emu(vec3 value) {
-  return vec3(
-      abs_emu1(value.x),
-      abs_emu1(value.y),
-      abs_emu1(value.z));
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-     abs_emu(vColor.xyz * 2.0 - vec3(1, 1, 1)),
-     1);
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3-ref.vert
deleted file mode 100755
index 2327acb2ae18..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3-ref.vert
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float abs_emu1(float value) {
-  return value >= 0.0 ? value : -value;
-}
-
-vec3 abs_emu(vec3 value) {
-  return vec3(
-    abs_emu1(value.x),
-    abs_emu1(value.y),
-    abs_emu1(value.z));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-     abs(vColor.xyz * 2.0 - vec3(1, 1, 1)),
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3.frag
deleted file mode 100755
index 5b5937278b1e..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3.frag
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-     abs(vColor.xyz * 2.0 - vec3(1, 1, 1)),
-     1);
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3.vert
deleted file mode 100755
index 20fdf67c4f4f..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec3.vert
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-     abs(vColor.xyz * 2.0 - vec3(1, 1, 1)),
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4-ref.frag
deleted file mode 100755
index c8d5146b75f7..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4-ref.frag
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float abs_emu1(float value) {
-  return value >= 0.0 ? value : -value;
-}
-
-vec4 abs_emu(vec4 value) {
-  return vec4(
-      abs_emu1(value.x),
-      abs_emu1(value.y),
-      abs_emu1(value.z),
-      abs_emu1(value.w));
-}
-
-void main()
-{
-   gl_FragColor = abs_emu(vColor * 2.0 - vec4(1, 1, 1, 1));
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4-ref.vert
deleted file mode 100755
index 2203c94f352c..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4-ref.vert
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float abs_emu1(float value) {
-  return value >= 0.0 ? value : -value;
-}
-
-vec4 abs_emu(vec4 value) {
-  return vec4(
-    abs_emu1(value.x),
-    abs_emu1(value.y),
-    abs_emu1(value.z),
-    abs_emu1(value.w));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = abs_emu(vColor * 2.0 - vec4(1, 1, 1, 1));
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4.frag
deleted file mode 100755
index 155c9dad4e7a..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4.frag
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = abs(vColor * 2.0 - vec4(1, 1, 1, 1));
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4.vert
deleted file mode 100755
index 2d00173ecac6..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs-vec4.vert
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = abs(vColor * 2.0 - vec4(1, 1, 1, 1));
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs.frag
deleted file mode 100755
index 1d18baab19bf..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs.frag
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-     abs(vTexcoord.x * 2.0 - 1.0),
-     abs(vTexcoord.y * 2.0 - 1.0),
-     0,
-     1);
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/abs.vert
deleted file mode 100755
index 4c9a49fc08fa..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/abs.vert
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-     abs(color.x * 2.0 - 1.0),
-     0,
-     abs(color.y * 2.0 - 1.0),
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/base.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/base.frag
deleted file mode 100755
index 8127ee6fd479..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/base.frag
+++ /dev/null
@@ -1,15 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vColor;
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/base.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/base.vert
deleted file mode 100755
index 9acf2add41eb..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/base.vert
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vColor = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-ref.frag
deleted file mode 100755
index 34e905a9dcd1..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-ref.frag
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float ceil_emu(float value) {
-  float m = mod(value, 1.0);
-  return m != 0.0 ? (value + 1.0 - m) : value;
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-      ceil_emu(vColor.x * 8.0 - 4.0) / 8.0 + 0.5,
-      0, 0, 1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-ref.vert
deleted file mode 100755
index cf0c76a1cde5..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-ref.vert
+++ /dev/null
@@ -1,33 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float ceil_emu(float value) {
-  float m = mod(value, 1.0);
-  return m != 0.0 ? (value + 1.0 - m) : value;
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       ceil_emu(color.x * 8.0 - 4.0) / 8.0 + 0.5,
-       0,
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2-ref.frag
deleted file mode 100755
index ba1904f06581..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2-ref.frag
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float ceil_emu1(float value) {
-  float m = mod(value, 1.0);
-  return m != 0.0 ? (value + 1.0 - m) : value;
-}
-
-vec2 ceil_emu(vec2 value) {
-  return vec2(
-	  ceil_emu1(value.x),
-	  ceil_emu1(value.y));
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-      ceil_emu(vColor.xy * 8.0 - vec2(4, 4)) / 8.0 + vec2(0.5, 0.5),
-      0, 1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2-ref.vert
deleted file mode 100755
index 5d6d08ccdd47..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2-ref.vert
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float ceil_emu1(float value) {
-  float m = mod(value, 1.0);
-  return m != 0.0 ? (value + 1.0 - m) : value;
-}
-
-vec2 ceil_emu(vec2 value) {
-  return vec2(
-	  ceil_emu1(value.x),
-	  ceil_emu1(value.y));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       ceil(color.xy * 8.0 - vec2(4, 4)) / 8.0 + vec2(0.5, 0.5),
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2.frag
deleted file mode 100755
index 51a3c8be02d9..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-      ceil(vColor.xy * 8.0 - vec2(4, 4)) / 8.0 + vec2(0.5, 0.5),
-      0, 1);
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2.vert
deleted file mode 100755
index 0c665a67c1ae..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec2.vert
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       ceil(color.xy * 8.0 - vec2(4, 4)) / 8.0 + vec2(0.5, 0.5),
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3-ref.frag
deleted file mode 100755
index 960694f5451a..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3-ref.frag
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float ceil_emu1(float value) {
-  float m = mod(value, 1.0);
-  return m != 0.0 ? (value + 1.0 - m) : value;
-}
-
-vec3 ceil_emu(vec3 value) {
-  return vec3(
-	  ceil_emu1(value.x),
-	  ceil_emu1(value.y),
-	  ceil_emu1(value.z));
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-      ceil_emu(vColor.xyz * 8.0 - vec3(4, 4, 4)) / 8.0 + vec3(0.5, 0.5, 0.5),
-      1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3-ref.vert
deleted file mode 100755
index 2a37961c6d62..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3-ref.vert
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float ceil_emu1(float value) {
-  float m = mod(value, 1.0);
-  return m != 0.0 ? (value + 1.0 - m) : value;
-}
-
-vec3 ceil_emu(vec3 value) {
-  return vec3(
-	  ceil_emu1(value.x),
-	  ceil_emu1(value.y),
-	  ceil_emu1(value.z));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       ceil_emu(color.xyz * 8.0 - vec3(4, 4, 4)) / 8.0 + vec3(0.5, 0.5, 0.5),
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3.frag
deleted file mode 100755
index 23d6c439f792..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-      ceil(vColor.xyz * 8.0 - vec3(4, 4, 4)) / 8.0 + vec3(0.5, 0.5, 0.5),
-      1);
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3.vert
deleted file mode 100755
index 9ea299e9c15b..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec3.vert
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       ceil(color.xyz * 8.0 - vec3(4, 4, 4)) / 8.0 + vec3(0.5, 0.5, 0.5),
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4-ref.frag
deleted file mode 100755
index 18c360f1c0ec..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4-ref.frag
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float ceil_emu1(float value) {
-  float m = mod(value, 1.0);
-  return m != 0.0 ? (value + 1.0 - m) : value;
-}
-
-vec4 ceil_emu(vec4 value) {
-  return vec4(
-	  ceil_emu1(value.x),
-	  ceil_emu1(value.y),
-	  ceil_emu1(value.z),
-	  ceil_emu1(value.w));
-}
-
-void main()
-{
-   gl_FragColor =
-      ceil_emu(vColor * 8.0 - vec4(4, 4, 4, 4)) / 8.0 + vec4(0.5, 0.5, 0.5, 0.5);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4-ref.vert
deleted file mode 100755
index 468a9422e0ca..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4-ref.vert
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float ceil_emu1(float value) {
-  float m = mod(value, 1.0);
-  return m != 0.0 ? (value + 1.0 - m) : value;
-}
-
-vec4 ceil_emu(vec4 value) {
-  return vec4(
-	  ceil_emu1(value.x),
-	  ceil_emu1(value.y),
-	  ceil_emu1(value.z),
-	  ceil_emu1(value.w));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = ceil_emu(
-       color * 8.0 - vec4(4, 4, 4, 4)) / 8.0 + vec4(0.5, 0.5, 0.5, 0.5);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4.frag
deleted file mode 100755
index aebacfb784f2..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4.frag
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor =
-      ceil(vColor * 8.0 - vec4(4, 4, 4, 4)) / 8.0 + vec4(0.5, 0.5, 0.5, 0.5);
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4.vert
deleted file mode 100755
index f9053c2babbc..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil-vec4.vert
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = ceil(
-       color * 8.0 - vec4(4, 4, 4, 4)) / 8.0 + vec4(0.5, 0.5, 0.5, 0.5);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil.frag
deleted file mode 100755
index 827e9056fdce..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-      ceil(vColor.x * 8.0 - 4.0) / 8.0 + 0.5,
-      0, 0, 1);
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil.vert
deleted file mode 100755
index ab285b77c391..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/ceil.vert
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       ceil(color.x * 8.0 - 4.0) / 8.0 + 0.5,
-       0,
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-ref.frag
deleted file mode 100755
index 90dc7c73c0ed..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-ref.frag
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float floor_emu(float value) {
-  return value - mod(value, 1.0);
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-      floor_emu(vColor.x * 8.0 - 4.0) / 8.0 + 0.5,
-      0, 0, 1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-ref.vert
deleted file mode 100755
index 1ae5c1d58e4e..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-ref.vert
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float floor_emu(float value) {
-  return value - mod(value, 1.0);
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       floor_emu(color.x * 8.0 - 4.0) / 8.0 + 0.5,
-       0,
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2-ref.frag
deleted file mode 100755
index 0b0e762421fa..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2-ref.frag
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float floor_emu1(float value) {
-  return value - mod(value, 1.0);
-}
-
-vec2 floor_emu(vec2 value) {
-  return vec2(
-	  floor_emu1(value.x),
-	  floor_emu1(value.y));
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-      floor_emu(vColor.xy * 8.0 - vec2(4, 4)) / 8.0 + vec2(0.5, 0.5),
-      0, 1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2-ref.vert
deleted file mode 100755
index 27d6e0cbd8ef..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2-ref.vert
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float floor_emu1(float value) {
-  return value - mod(value, 1.0);
-}
-
-vec2 floor_emu(vec2 value) {
-  return vec2(
-	  floor_emu1(value.x),
-	  floor_emu1(value.y));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       floor(color.xy * 8.0 - vec2(4, 4)) / 8.0 + vec2(0.5, 0.5),
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2.frag
deleted file mode 100755
index 10ce074e7917..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-      floor(vColor.xy * 8.0 - vec2(4, 4)) / 8.0 + vec2(0.5, 0.5),
-      0, 1);
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2.vert
deleted file mode 100755
index 4e786ad1bf6d..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec2.vert
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       floor(color.xy * 8.0 - vec2(4, 4)) / 8.0 + vec2(0.5, 0.5),
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3-ref.frag
deleted file mode 100755
index f2243244726f..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3-ref.frag
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float floor_emu1(float value) {
-  return value - mod(value, 1.0);
-}
-
-vec3 floor_emu(vec3 value) {
-  return vec3(
-	  floor_emu1(value.x),
-	  floor_emu1(value.y),
-	  floor_emu1(value.z));
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-      floor_emu(vColor.xyz * 8.0 - vec3(4, 4, 4)) / 8.0 + vec3(0.5, 0.5, 0.5),
-      1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3-ref.vert
deleted file mode 100755
index f79603a1ab6f..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3-ref.vert
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float floor_emu1(float value) {
-  return value - mod(value, 1.0);
-}
-
-vec3 floor_emu(vec3 value) {
-  return vec3(
-	  floor_emu1(value.x),
-	  floor_emu1(value.y),
-	  floor_emu1(value.z));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       floor_emu(color.xyz * 8.0 - vec3(4, 4, 4)) / 8.0 + vec3(0.5, 0.5, 0.5),
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3.frag
deleted file mode 100755
index fa1520a3acf3..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-      floor(vColor.xyz * 8.0 - vec3(4, 4, 4)) / 8.0 + vec3(0.5, 0.5, 0.5),
-      1);
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3.vert
deleted file mode 100755
index e6e97a0dd048..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec3.vert
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       floor(color.xyz * 8.0 - vec3(4, 4, 4)) / 8.0 + vec3(0.5, 0.5, 0.5),
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4-ref.frag
deleted file mode 100755
index 9769c9d4089e..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4-ref.frag
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float floor_emu1(float value) {
-  return value - mod(value, 1.0);
-}
-
-vec4 floor_emu(vec4 value) {
-  return vec4(
-	  floor_emu1(value.x),
-	  floor_emu1(value.y),
-	  floor_emu1(value.z),
-	  floor_emu1(value.w));
-}
-
-void main()
-{
-   gl_FragColor =
-      floor_emu(vColor * 8.0 - vec4(4, 4, 4, 4)) / 8.0 + vec4(0.5, 0.5, 0.5, 0.5);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4-ref.vert
deleted file mode 100755
index 12b3612a315e..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4-ref.vert
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float floor_emu1(float value) {
-  return value - mod(value, 1.0);
-}
-
-vec4 floor_emu(vec4 value) {
-  return vec4(
-	  floor_emu1(value.x),
-	  floor_emu1(value.y),
-	  floor_emu1(value.z),
-	  floor_emu1(value.w));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = floor_emu(
-       color * 8.0 - vec4(4, 4, 4, 4)) / 8.0 + vec4(0.5, 0.5, 0.5, 0.5);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4.frag
deleted file mode 100755
index bf75bcfbfe44..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4.frag
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor =
-      floor(vColor * 8.0 - vec4(4, 4, 4, 4)) / 8.0 + vec4(0.5, 0.5, 0.5, 0.5);
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4.vert
deleted file mode 100755
index 81bef611bf52..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor-vec4.vert
+++ /dev/null
@@ -1,25 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = floor(
-       color * 8.0 - vec4(4, 4, 4, 4)) / 8.0 + vec4(0.5, 0.5, 0.5, 0.5);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor.frag
deleted file mode 100755
index 8010c3bd3eb1..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-      floor(vColor.x * 8.0 - 4.0) / 8.0 + 0.5,
-      0, 0, 1);
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/floor.vert
deleted file mode 100755
index 570c11d06f01..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/floor.vert
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       floor(color.x * 8.0 - 4.0) / 8.0 + 0.5,
-       0,
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-ref.frag
deleted file mode 100755
index 67918fc30753..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-ref.frag
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float fract_emu(float value) {
-  return value - floor(value);
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-      fract_emu(vColor.x * 4.0 - 2.0),
-      0, 0, 1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-ref.vert
deleted file mode 100755
index 8a071474b76d..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-ref.vert
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float fract_emu(float value) {
-  return value - floor(value);
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       fract_emu(color.x * 4.0 - 2.0),
-       0,
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2-ref.frag
deleted file mode 100755
index 6fea00d39084..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2-ref.frag
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float fract_emu1(float value) {
-  return value - floor(value);
-}
-
-vec2 fract_emu(vec2 value) {
-  return vec2(
-	  fract_emu1(value.x),
-	  fract_emu1(value.y));
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-      fract_emu(vColor.xy * 4.0 - vec2(2, 2)),
-      0, 1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2-ref.vert
deleted file mode 100755
index 0fada9b803bc..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2-ref.vert
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float fract_emu1(float value) {
-  return value - floor(value);
-}
-
-vec2 fract_emu(vec2 value) {
-  return vec2(
-	  fract_emu1(value.x),
-	  fract_emu1(value.y));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       fract(color.xy * 4.0 - vec2(2, 2)),
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2.frag
deleted file mode 100755
index 6806ca5a64c2..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-      fract(vColor.xy * 4.0 - vec2(2, 2)),
-      0, 1);
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2.vert
deleted file mode 100755
index 5156b38f5625..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec2.vert
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       fract(color.xy * 4.0 - vec2(2, 2)),
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3-ref.frag
deleted file mode 100755
index e09fac3ea28f..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3-ref.frag
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float fract_emu1(float value) {
-  return value - floor(value);
-}
-
-vec3 fract_emu(vec3 value) {
-  return vec3(
-	  fract_emu1(value.x),
-	  fract_emu1(value.y),
-	  fract_emu1(value.z));
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-      fract_emu(vColor.xyz * 4.0 - vec3(2, 2, 2)),
-      1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3-ref.vert
deleted file mode 100755
index fc1ab9530d25..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3-ref.vert
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float fract_emu1(float value) {
-  return value - floor(value);
-}
-
-vec3 fract_emu(vec3 value) {
-  return vec3(
-	  fract_emu1(value.x),
-	  fract_emu1(value.y),
-	  fract_emu1(value.z));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       fract_emu(color.xyz * 4.0 - vec3(2, 2, 2)),
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3.frag
deleted file mode 100755
index d9b3bc4ce1f4..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-      fract(vColor.xyz * 4.0 - vec3(2, 2, 2)),
-      1);
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3.vert
deleted file mode 100755
index 12c1e02975d8..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec3.vert
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       fract(color.xyz * 4.0 - vec3(2, 2, 2)),
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4-ref.frag
deleted file mode 100755
index 4c6b45ac50d6..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4-ref.frag
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float fract_emu1(float value) {
-  return value - floor(value);
-}
-
-vec4 fract_emu(vec4 value) {
-  return vec4(
-	  fract_emu1(value.x),
-	  fract_emu1(value.y),
-	  fract_emu1(value.z),
-	  fract_emu1(value.w));
-}
-
-void main()
-{
-   gl_FragColor =
-      fract_emu(vColor * 4.0 - vec4(2, 2, 2, 2));
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4-ref.vert
deleted file mode 100755
index 69f50557f3c0..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4-ref.vert
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float fract_emu1(float value) {
-  return value - floor(value);
-}
-
-vec4 fract_emu(vec4 value) {
-  return vec4(
-	  fract_emu1(value.x),
-	  fract_emu1(value.y),
-	  fract_emu1(value.z),
-	  fract_emu1(value.w));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = fract_emu(color * 4.0 - vec4(2, 2, 2, 2));
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4.frag
deleted file mode 100755
index b46769b244c3..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4.frag
+++ /dev/null
@@ -1,16 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = fract(vColor * 4.0 - vec4(2, 2, 2, 2));
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4.vert
deleted file mode 100755
index 4e6fd1855346..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract-vec4.vert
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = fract(color * 4.0 - vec4(2, 2, 2, 2));
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract.frag
deleted file mode 100755
index d7f14af047fc..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-      fract(vColor.x * 4.0 - 2.0),
-      0, 0, 1);
-}
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/fract.vert
deleted file mode 100755
index 04949277f174..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/fract.vert
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vec4 color = vec4(
-       aTexcoord,
-       aTexcoord.x * aTexcoord.y,
-       (1.0 - aTexcoord.x) * aTexcoord.y * 0.5 + 0.5);
-   vColor = vec4(
-       fract(color.x * 4.0 - 2.0),
-       0,
-       0,
-       1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-ref.frag
deleted file mode 100755
index 305993926348..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-ref.frag
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float sign_emu(float value) {
-  if (value == 0.0) return 0.0;
-  return value > 0.0 ? 1.0 : -1.0;
-}
-
-void main()
-{
-   gl_FragColor = vec4(
-     sign_emu(vTexcoord.x * 2.0 - 1.0),
-     sign_emu(vTexcoord.y * 2.0 - 1.0),
-     0,
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-ref.vert
deleted file mode 100755
index f8fd8dd74d9e..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-ref.vert
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float sign_emu(float value) {
-  if (value == 0.0) return 0.0;
-  return value > 0.0 ? 1.0 : -1.0;
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vColor = vec4(
-     sign_emu(aTexcoord.x * 2.0 - 1.0), 
-     sign_emu(aTexcoord.y * 2.0 - 1.0), 
-     0, 
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2-ref.frag
deleted file mode 100755
index 682abf2b08c3..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2-ref.frag
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float sign_emu1(float value) {
-  if (value == 0.0) return 0.0;
-  return value > 0.0 ? 1.0 : -1.0;
-}
-
-vec2 sign_emu(vec2 value) {
-  return vec2(
-	  sign_emu1(value.x),
-	  sign_emu1(value.y));
-}
-
-void main()
-{
-   gl_FragColor = vec4(sign_emu(
-      vTexcoord * 2.0 - vec2(1, 1)),
-      0,
-      1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2-ref.vert
deleted file mode 100755
index c332114eb6d3..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2-ref.vert
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float sign_emu1(float value) {
-  if (value == 0.0) return 0.0;
-  return value > 0.0 ? 1.0 : -1.0;
-}
-
-vec2 sign_emu(vec2 value) {
-  return vec2(sign_emu1(value.x), sign_emu1(value.y));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vColor = vec4(
-     sign_emu(aTexcoord * 2.0 - vec2(1, 1)),
-     0, 
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2.frag
deleted file mode 100755
index 24fc3786cb94..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(sign(
-      vTexcoord * 2.0 - vec2(1, 1)),
-      0,
-      1);
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2.vert
deleted file mode 100755
index 3bab936c7020..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec2.vert
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vColor = vec4(
-     sign(aTexcoord * 2.0 - vec2(1, 1)),
-     0,
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3-ref.frag
deleted file mode 100755
index 1f9689f05e27..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3-ref.frag
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float sign_emu1(float value) {
-  if (value == 0.0) return 0.0;
-  return value > 0.0 ? 1.0 : -1.0;
-}
-
-vec3 sign_emu(vec3 value) {
-  return vec3(
-	  sign_emu1(value.x),
-	  sign_emu1(value.y),
-	  sign_emu1(value.z));
-}
-
-void main()
-{
-   gl_FragColor = vec4(sign_emu(vec3(
-      0,
-      vTexcoord * 2.0 - vec2(1, 1))),
-      1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3-ref.vert
deleted file mode 100755
index cb5ea493ddd2..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3-ref.vert
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float sign_emu1(float value) {
-  if (value == 0.0) return 0.0;
-  return value > 0.0 ? 1.0 : -1.0;
-}
-
-vec3 sign_emu(vec3 value) {
-  return vec3(sign_emu1(value.x), sign_emu1(value.y), sign_emu1(value.z));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vColor = vec4(
-     sign_emu(vec3(0, aTexcoord * 2.0 - vec2(1, 1))),
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3.frag
deleted file mode 100755
index 06681aae0980..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3.frag
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(sign(vec3(
-      0,
-      vTexcoord * 2.0 - vec2(1, 1))),
-      1);
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3.vert
deleted file mode 100755
index a37660e5b10b..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec3.vert
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vColor = vec4(
-     sign(vec3(0, aTexcoord * 2.0 - vec2(1, 1))),
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4-ref.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4-ref.frag
deleted file mode 100755
index 27b6bdb5f583..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4-ref.frag
+++ /dev/null
@@ -1,32 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float sign_emu1(float value) {
-  if (value == 0.0) return 0.0;
-  return value > 0.0 ? 1.0 : -1.0;
-}
-
-vec4 sign_emu(vec4 value) {
-  return vec4(
-	  sign_emu1(value.x),
-	  sign_emu1(value.y),
-	  sign_emu1(value.z),
-	  sign_emu1(value.w));
-}
-
-void main()
-{
-   gl_FragColor = sign_emu(vec4(
-      vTexcoord.yx * -2.0 + vec2(1, 1),
-      vTexcoord * 2.0 - vec2(1, 1)));
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4-ref.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4-ref.vert
deleted file mode 100755
index 80fcad195970..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4-ref.vert
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-float sign_emu1(float value) {
-  if (value == 0.0) return 0.0;
-  return value > 0.0 ? 1.0 : -1.0;
-}
-
-vec4 sign_emu(vec4 value) {
-  return vec4(
-	  sign_emu1(value.x),
-	  sign_emu1(value.y),
-	  sign_emu1(value.z),
-	  sign_emu1(value.w));
-}
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vColor = sign_emu(vec4(
-      aTexcoord.yx * -2.0 + vec2(1, 1),
-      aTexcoord * 2.0 - vec2(1, 1)));
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4.frag
deleted file mode 100755
index 07804592ee2a..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4.frag
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = sign(vec4(
-      vTexcoord.yx * -2.0 + vec2(1, 1),
-      vTexcoord * 2.0 - vec2(1, 1)));
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4.vert
deleted file mode 100755
index 7165ae3ef943..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign-vec4.vert
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vColor = sign(vec4(
-      aTexcoord.yx * -2.0 + vec2(1, 1),
-      aTexcoord * 2.0 - vec2(1, 1)));
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign.frag b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign.frag
deleted file mode 100755
index 6ead9a068612..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign.frag
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-precision mediump float;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_FragColor = vec4(
-     sign(vTexcoord.x * 2.0 - 1.0),
-     sign(vTexcoord.y * 2.0 - 1.0),
-     0,
-     1);
-}
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign.vert b/content/canvas/test/webgl/conformance/shaders/glsl-features/sign.vert
deleted file mode 100755
index 6be8b9d4b8c9..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/glsl-features/sign.vert
+++ /dev/null
@@ -1,24 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-attribute vec4 aPosition;
-attribute vec2 aTexcoord;
-
-varying vec2 vTexcoord;
-varying vec4 vColor;
-
-void main()
-{
-   gl_Position = aPosition;
-   vTexcoord = aTexcoord;
-   vColor = vec4(
-     sign(aTexcoord.x * 2.0 - 1.0), 
-     sign(aTexcoord.y * 2.0 - 1.0), 
-     0,
-     1);
-}
-
-
-
-
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/00_shaders.txt b/content/canvas/test/webgl/conformance/shaders/implicit/00_shaders.txt
deleted file mode 100644
index 15d2e53da7f7..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/00_shaders.txt
+++ /dev/null
@@ -1,65 +0,0 @@
-add_int_float.vert
-add_int_mat2.vert
-add_int_mat3.vert
-add_int_mat4.vert
-add_int_vec2.vert
-add_int_vec3.vert
-add_int_vec4.vert
-add_ivec2_vec2.vert
-add_ivec3_vec3.vert
-add_ivec4_vec4.vert
-assign_int_to_float.vert
-assign_ivec2_to_vec2.vert
-assign_ivec3_to_vec3.vert
-assign_ivec4_to_vec4.vert
-construct_struct.vert
-divide_int_float.vert
-divide_int_mat2.vert
-divide_int_mat3.vert
-divide_int_mat4.vert
-divide_int_vec2.vert
-divide_int_vec3.vert
-divide_int_vec4.vert
-divide_ivec2_vec2.vert
-divide_ivec3_vec3.vert
-divide_ivec4_vec4.vert
-equal_int_float.vert
-equal_ivec2_vec2.vert
-equal_ivec3_vec3.vert
-equal_ivec4_vec4.vert
-function_int_float.vert
-function_ivec2_vec2.vert
-function_ivec3_vec3.vert
-function_ivec4_vec4.vert
-greater_than.vert
-greater_than_equal.vert
-less_than.vert
-less_than_equal.vert
-multiply_int_float.vert
-multiply_int_mat2.vert
-multiply_int_mat3.vert
-multiply_int_mat4.vert
-multiply_int_vec2.vert
-multiply_int_vec3.vert
-multiply_int_vec4.vert
-multiply_ivec2_vec2.vert
-multiply_ivec3_vec3.vert
-multiply_ivec4_vec4.vert
-not_equal_int_float.vert
-not_equal_ivec2_vec2.vert
-not_equal_ivec3_vec3.vert
-not_equal_ivec4_vec4.vert
-subtract_int_float.vert
-subtract_int_mat2.vert
-subtract_int_mat3.vert
-subtract_int_mat4.vert
-subtract_int_vec2.vert
-subtract_int_vec3.vert
-subtract_int_vec4.vert
-subtract_ivec2_vec2.vert
-subtract_ivec3_vec3.vert
-subtract_ivec4_vec4.vert
-ternary_int_float.vert
-ternary_ivec2_vec2.vert
-ternary_ivec3_vec3.vert
-ternary_ivec4_vec4.vert
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_float.vert b/content/canvas/test/webgl/conformance/shaders/implicit/add_int_float.vert
deleted file mode 100644
index 18f1a7006d48..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_float.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast adding integer to float should fail
-void main()
-{
-    float f = 1.0 + 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_mat2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/add_int_mat2.vert
deleted file mode 100644
index 63fd312f3bfa..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_mat2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast adding integer to mat2 should fail
-void main()
-{
-    mat2 f = mat2(1.0) + 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_mat3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/add_int_mat3.vert
deleted file mode 100644
index c829e37ce500..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_mat3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast adding integer to mat3 should fail
-void main()
-{
-    mat3 f = mat3(1.0) + 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_mat4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/add_int_mat4.vert
deleted file mode 100644
index 806666dd4edf..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_mat4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast adding integer to mat4 should fail
-void main()
-{
-    mat4 f = mat4(1.0) + 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/add_int_vec2.vert
deleted file mode 100644
index 8e76a57e77c9..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast adding integer to vec2 should fail
-void main()
-{
-    vec2 f = vec2(1.0, 2.0) + 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/add_int_vec3.vert
deleted file mode 100644
index 033140e3f1d1..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast adding integer to vec3 should fail
-void main()
-{
-    vec3 f = vec3(1.0, 2.0, 3.0) + 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/add_int_vec4.vert
deleted file mode 100644
index 6f3127b94ff2..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/add_int_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast adding integer to vec4 should fail
-void main()
-{
-    vec4 f = vec4(1.0, 2.0, 3.0, 4.0) + 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/add_ivec2_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/add_ivec2_vec2.vert
deleted file mode 100644
index dcb06f29cfff..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/add_ivec2_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast adding ivec2 to vec2 should fail
-void main()
-{
-    vec2 f = vec2(1.0, 2.0) + ivec2(1, 2);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/add_ivec3_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/add_ivec3_vec3.vert
deleted file mode 100644
index bb0edcdf2b3c..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/add_ivec3_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast adding ivec3 to vec3 should fail
-void main()
-{
-    vec3 f = vec3(1.0, 2.0, 3.0) + ivec3(1, 2, 3);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/add_ivec4_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/add_ivec4_vec4.vert
deleted file mode 100644
index 79cfde9435c4..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/add_ivec4_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast adding ivec4 to vec4 should fail
-void main()
-{
-    vec4 f = vec4(1.0, 2.0, 3.0, 4.0) + ivec4(1, 2, 3, 4);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/assign_int_to_float.vert b/content/canvas/test/webgl/conformance/shaders/implicit/assign_int_to_float.vert
deleted file mode 100644
index 360b09cb0ed3..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/assign_int_to_float.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast assing int to float should fail
-void main()
-{
-    float f = -123;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/assign_ivec2_to_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/assign_ivec2_to_vec2.vert
deleted file mode 100644
index bf37974f17e1..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/assign_ivec2_to_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast assigning ivec2 to vec2 should fail
-void main()
-{
-    vec2 f = ivec2(1, 2);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/assign_ivec3_to_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/assign_ivec3_to_vec3.vert
deleted file mode 100644
index ccb51e9b4816..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/assign_ivec3_to_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast assigning ivec3 to vec3 should fail
-void main()
-{
-    vec3 f = ivec3(1, 2, 3);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/assign_ivec4_to_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/assign_ivec4_to_vec4.vert
deleted file mode 100644
index 27aeae0c632b..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/assign_ivec4_to_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast assigning ivec4 to vec4 should fail
-void main()
-{
-    vec4 f = ivec4(1, 2, 3, 4);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/construct_struct.vert b/content/canvas/test/webgl/conformance/shaders/implicit/construct_struct.vert
deleted file mode 100644
index 28a8eccd5035..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/construct_struct.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// implicit cast from int to float in struct initializer should fail
-struct Foo {
-  float bar;
-};
-
-void main() {
-  Foo foo = Foo(1);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_float.vert b/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_float.vert
deleted file mode 100644
index 28df86adba48..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_float.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of float divided by int should fail
-void main()
-{
-    float f = 1.0 / 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_mat2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_mat2.vert
deleted file mode 100644
index 8f7d4b5a8fdb..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_mat2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of mat2 divided by int should fail
-void main()
-{
-    mat2 f = mat2(1.0) / 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_mat3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_mat3.vert
deleted file mode 100644
index f989c98d06a0..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_mat3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of mat3 divided by int should fail
-void main()
-{
-    mat3 f = mat3(1.0) / 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_mat4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_mat4.vert
deleted file mode 100644
index a58c98eb0726..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_mat4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of mat4 divided by int should fail
-void main()
-{
-    mat4 f = mat4(1.0) / 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_vec2.vert
deleted file mode 100644
index 4239f66c2652..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of vec2 divided by int should fail
-void main()
-{
-    vec2 f = vec2(1.0, 2.0) / 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_vec3.vert
deleted file mode 100644
index 72f63808702e..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of vec3 divided by int should fail
-void main()
-{
-    vec3 f = vec3(1.0, 2.0, 3.0) / 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_vec4.vert
deleted file mode 100644
index 5f203acac350..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/divide_int_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of vec4 divided by int should fail
-void main()
-{
-    vec4 f = vec4(1.0, 2.0, 3.0, 4.0) / 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/divide_ivec2_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/divide_ivec2_vec2.vert
deleted file mode 100644
index 762bcbc3bae9..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/divide_ivec2_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of vec2 divided by ivec2 should fail
-void main()
-{
-    vec2 f = vec2(1.0, 2.0) / ivec2(1, 2);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/divide_ivec3_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/divide_ivec3_vec3.vert
deleted file mode 100644
index d6a42152a632..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/divide_ivec3_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of vec3 divided by ivec3 should fail
-void main()
-{
-    vec3 f = vec3(1.0, 2.0, 3.0) / ivec3(1, 2, 3);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/divide_ivec4_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/divide_ivec4_vec4.vert
deleted file mode 100644
index 22cdae7ac861..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/divide_ivec4_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of vec4 divided by ivec4 should fail
-void main()
-{
-    vec4 f = vec4(1.0, 2.0, 3.0, 4.0) / ivec4(1, 2, 3, 4);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/equal_int_float.vert b/content/canvas/test/webgl/conformance/shaders/implicit/equal_int_float.vert
deleted file mode 100644
index a1c6a5c13698..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/equal_int_float.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to float in comparision should fail
-void main()
-{
-    bool b = 1.0 == 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/equal_ivec2_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/equal_ivec2_vec2.vert
deleted file mode 100644
index 59cf941ebe8b..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/equal_ivec2_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec2 to vec2 in comparision should fail
-void main()
-{
-    bool b = vec2(1.0, 2.0) == ivec2(1, 2);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/equal_ivec3_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/equal_ivec3_vec3.vert
deleted file mode 100644
index ffdddbc85f1e..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/equal_ivec3_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec3 to vec3 in comparision should fail
-void main()
-{
-    bool b = vec3(1.0, 2.0, 3.0) == ivec3(1, 2, 3);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/equal_ivec4_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/equal_ivec4_vec4.vert
deleted file mode 100644
index 03448791a19d..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/equal_ivec4_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec4 to vec4 in comparision should fail
-void main()
-{
-    bool b = vec4(1.0, 2.0, 3.0, 4.0) == ivec4(1, 2, 3, 4);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/function_int_float.vert b/content/canvas/test/webgl/conformance/shaders/implicit/function_int_float.vert
deleted file mode 100644
index 14f0755ef89a..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/function_int_float.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// implicit cast of int to float in function argument should fail
-float foo(float f) {
-  return f;
-}
-
-void main() {
-  float f = foo(1);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/function_ivec2_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/function_ivec2_vec2.vert
deleted file mode 100644
index 99991ae38dd2..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/function_ivec2_vec2.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// implicit cast of ivec2 to vec2 in function argument should fail
-vec2 foo(vec2 f) {
-  return f;
-}
-
-void main() {
-  vec2 f = foo(ivec2(1, 2));
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/function_ivec3_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/function_ivec3_vec3.vert
deleted file mode 100644
index 6ba3d4e968b7..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/function_ivec3_vec3.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// implicit cast of ivec3 to vec3 in function argument should fail
-vec3 foo(vec3 f) {
-  return f;
-}
-
-void main() {
-  vec3 f = foo(ivec3(1, 2, 3));
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/function_ivec4_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/function_ivec4_vec4.vert
deleted file mode 100644
index 24c5b7874907..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/function_ivec4_vec4.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// implicit cast of ivec4 to vec4 in function argument should fail
-vec4 foo(vec4 f) {
-  return f;
-}
-
-void main() {
-  vec4 f = foo(ivec4(1, 2, 3, 4));
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/greater_than.vert b/content/canvas/test/webgl/conformance/shaders/implicit/greater_than.vert
deleted file mode 100644
index 8bfc88a54008..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/greater_than.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to float with greater than should fail
-void main()
-{
-    bool b = 1.0 > 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/greater_than_equal.vert b/content/canvas/test/webgl/conformance/shaders/implicit/greater_than_equal.vert
deleted file mode 100644
index af9945253a19..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/greater_than_equal.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to float with greater than or equal to should fail
-void main()
-{
-    bool b = 1.0 >= 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/less_than.vert b/content/canvas/test/webgl/conformance/shaders/implicit/less_than.vert
deleted file mode 100644
index b9212b711547..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/less_than.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to float with less than should fail
-void main()
-{
-    bool b = 1.0 < 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/less_than_equal.vert b/content/canvas/test/webgl/conformance/shaders/implicit/less_than_equal.vert
deleted file mode 100644
index 750e7fb8bd9c..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/less_than_equal.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to float with less than or equal to should fail
-void main()
-{
-    bool b = 1.0 <= 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_float.vert b/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_float.vert
deleted file mode 100644
index 38dc6217b9d5..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_float.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to float in multiply should fail
-void main()
-{
-    float f = 1.0 * 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_mat2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_mat2.vert
deleted file mode 100644
index 9159fe519599..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_mat2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to mat2 in multiply should fail
-void main()
-{
-    mat2 f = mat2(1.0) * 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_mat3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_mat3.vert
deleted file mode 100644
index 660e6eb89ec1..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_mat3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to mat3 in multiply should fail
-void main()
-{
-    mat3 f = mat3(1.0) * 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_mat4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_mat4.vert
deleted file mode 100644
index 2b3124ec43c4..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_mat4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to mat4 in multiply should fail
-void main()
-{
-    mat4 f = mat4(1.0) * 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_vec2.vert
deleted file mode 100644
index d25469b1788d..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to vec2 in multiply should fail
-void main()
-{
-    vec2 f = vec2(1.0, 2.0) * 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_vec3.vert
deleted file mode 100644
index 06882389c136..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to vec3 in multiply should fail
-void main()
-{
-    vec3 f = vec3(1.0, 2.0, 3.0) * 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_vec4.vert
deleted file mode 100644
index 5186dbac2aad..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_int_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to vec4 in multiply should fail
-void main()
-{
-    vec4 f = vec4(1.0, 2.0, 3.0, 4.0) * 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_ivec2_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/multiply_ivec2_vec2.vert
deleted file mode 100644
index 164a68ade012..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_ivec2_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec2 to vec2 in multiply should fail
-void main()
-{
-    vec2 f = vec2(1.0, 2.0) * ivec2(1, 2);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_ivec3_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/multiply_ivec3_vec3.vert
deleted file mode 100644
index 2639248cdb1a..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_ivec3_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec3 to vec3 in multiply should fail
-void main()
-{
-    vec3 f = vec3(1.0, 2.0, 3.0) * ivec3(1, 2, 3);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_ivec4_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/multiply_ivec4_vec4.vert
deleted file mode 100644
index cc67c394330f..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/multiply_ivec4_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec4 to vec4 in multiply should fail
-void main()
-{
-    vec4 f = vec4(1.0, 2.0, 3.0, 4.0) * ivec4(1, 2, 3, 4);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_int_float.vert b/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_int_float.vert
deleted file mode 100644
index 93bf2853bc19..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_int_float.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to float in not equal comparison should fail
-void main()
-{
-    bool b = 1.0 != 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_ivec2_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_ivec2_vec2.vert
deleted file mode 100644
index fd8f32525960..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_ivec2_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec2 to vec2 in not equal comparison should fail
-void main()
-{
-    bool b = vec2(1.0, 2.0) != ivec2(1, 2);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_ivec3_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_ivec3_vec3.vert
deleted file mode 100644
index 031b813e4e9e..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_ivec3_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec3 to vec3 in not equal comparison should fail
-void main()
-{
-    bool b = vec3(1.0, 2.0, 3.0) != ivec3(1, 2, 3);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_ivec4_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_ivec4_vec4.vert
deleted file mode 100644
index 918ca50b813e..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/not_equal_ivec4_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec4 to vec4 in not equal comparison should fail
-void main()
-{
-    bool b = vec4(1.0, 2.0, 3.0, 4.0) != ivec4(1, 2, 3, 4);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_float.vert b/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_float.vert
deleted file mode 100644
index 60fda804e7a3..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_float.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to float in subtraction should fail
-void main()
-{
-    float f = 1.0 - 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_mat2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_mat2.vert
deleted file mode 100644
index db0b839a27ea..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_mat2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to mat2 in subtraction should fail
-void main()
-{
-    mat2 f = mat2(1.0) - 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_mat3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_mat3.vert
deleted file mode 100644
index c241bf3e143f..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_mat3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to mat3 in subtraction should fail
-void main()
-{
-    mat3 f = mat3(1.0) - 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_mat4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_mat4.vert
deleted file mode 100644
index de664044bd0f..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_mat4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to mat4 in subtraction should fail
-void main()
-{
-    mat4 f = mat4(1.0) - 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_vec2.vert
deleted file mode 100644
index 6391716568c5..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to vec2 in subtraction should fail
-void main()
-{
-    vec2 f = vec2(1.0, 2.0) - 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_vec3.vert
deleted file mode 100644
index 2859f868aecf..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to vec3 in subtraction should fail
-void main()
-{
-    vec3 f = vec3(1.0, 2.0, 3.0) - 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_vec4.vert
deleted file mode 100644
index e918a565e66c..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_int_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to vec4 in subtraction should fail
-void main()
-{
-    vec4 f = vec4(1.0, 2.0, 3.0, 4.0) - 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_ivec2_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/subtract_ivec2_vec2.vert
deleted file mode 100644
index 6613b0efa6f9..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_ivec2_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec2 to vec2 in subtraction should fail
-void main()
-{
-    vec2 f = vec2(1.0, 2.0) - ivec2(1, 2);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_ivec3_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/subtract_ivec3_vec3.vert
deleted file mode 100644
index 8ca7213a6601..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_ivec3_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec3 to vec3 in subtraction should fail
-void main()
-{
-    vec3 f = vec3(1.0, 2.0, 3.0) - ivec3(1, 2, 3);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_ivec4_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/subtract_ivec4_vec4.vert
deleted file mode 100644
index 0e900b0dd358..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/subtract_ivec4_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec4 to vec4 in subtraction should fail
-void main()
-{
-    vec4 f = vec4(1.0, 2.0, 3.0, 4.0) - ivec4(1, 2, 3, 4);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/ternary_int_float.vert b/content/canvas/test/webgl/conformance/shaders/implicit/ternary_int_float.vert
deleted file mode 100644
index b91309f2d5e4..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/ternary_int_float.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of int to float in ternary expression should fail
-void main()
-{
-    float f = true ? 1.0 : 1;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/ternary_ivec2_vec2.vert b/content/canvas/test/webgl/conformance/shaders/implicit/ternary_ivec2_vec2.vert
deleted file mode 100644
index 3a8d0f585bba..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/ternary_ivec2_vec2.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec2 to vec2 in ternary expression should fail
-void main()
-{
-    vec2 f = true ? vec2(1.0, 2.0) : ivec2(1, 2);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/ternary_ivec3_vec3.vert b/content/canvas/test/webgl/conformance/shaders/implicit/ternary_ivec3_vec3.vert
deleted file mode 100644
index 70f4b148df8b..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/ternary_ivec3_vec3.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec3 to vec3 in ternary expression should fail
-void main()
-{
-    vec3 f = true ? vec3(1.0, 2.0, 3.0) : ivec3(1, 2, 3);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/implicit/ternary_ivec4_vec4.vert b/content/canvas/test/webgl/conformance/shaders/implicit/ternary_ivec4_vec4.vert
deleted file mode 100644
index b8f7a408f028..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/implicit/ternary_ivec4_vec4.vert
+++ /dev/null
@@ -1,5 +0,0 @@
-// implicit cast of ivec4 to vec4 in ternary expression should fail
-void main()
-{
-    vec4 f = true ? vec4(1.0, 2.0, 3.0, 4.0) : ivec4(1, 2, 3, 4);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/misc/00_shaders.txt b/content/canvas/test/webgl/conformance/shaders/misc/00_shaders.txt
deleted file mode 100644
index 1fd1c5c6e583..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/misc/00_shaders.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-non-ascii.vert
-non-ascii-comments.vert
-shared.vert shared-a.frag
-shared.vert shared-b.frag
-
diff --git a/content/canvas/test/webgl/conformance/shaders/misc/non-ascii-comments.vert b/content/canvas/test/webgl/conformance/shaders/misc/non-ascii-comments.vert
deleted file mode 100644
index 2f906a808769..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/misc/non-ascii-comments.vert
+++ /dev/null
@@ -1,9 +0,0 @@
-// Non ascii comments in source should succeed
-// ����͂`�r�b�h�h�ł͂Ȃ��ł��B
-// �s�������@�h���@�m�����@�`�r�b�h�h
-/*
- * �s�������@�h���@�m�����@�`�r�b�h�h
- */
-void main() {
-  gl_Position = vec4(1,1,1,1);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/misc/non-ascii.vert b/content/canvas/test/webgl/conformance/shaders/misc/non-ascii.vert
deleted file mode 100644
index cc80bc4032b0..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/misc/non-ascii.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// Non ascii data in source should fail
-// See GLSL ES Spec 1.0.17 section 3.1 and 3.2
-// ����͂`�r�b�h�h�ł͂Ȃ��ł��B
-// �s�������@�h���@�m�����@�`�r�b�h�h
-uniform mat4 �m�����`�r�b�h�h;
-void main() {
-  gl_Position = vec4(1,1,1,1);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/misc/shared-a.frag b/content/canvas/test/webgl/conformance/shaders/misc/shared-a.frag
deleted file mode 100755
index 73ca3c8a0992..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/misc/shared-a.frag
+++ /dev/null
@@ -1,34 +0,0 @@
-// shared fragment shader should succeed.
-precision mediump float;
-uniform vec4 lightColor;
-varying vec4 v_position;
-varying vec2 v_texCoord;
-varying vec3 v_surfaceToLight;
-
-uniform vec4 ambient;
-uniform sampler2D diffuse;
-uniform vec4 specular;
-uniform float shininess;
-uniform float specularFactor;
-// #fogUniforms
-
-vec4 lit(float l ,float h, float m) {
-  return vec4(1.0,
-              max(l, 0.0),
-              (l > 0.0) ? pow(max(0.0, h), m) : 0.0,
-              1.0);
-}
-void main() {
-  vec4 diffuseColor = texture2D(diffuse, v_texCoord);
-  vec4 normalSpec = vec4(0,0,0,0);  // #noNormalMap
-  vec3 surfaceToLight = normalize(v_surfaceToLight);
-  vec3 halfVector = normalize(surfaceToLight);
-  vec4 litR = lit(1.0, 1.0, shininess);
-  vec4 outColor = vec4(
-    (lightColor * (diffuseColor * litR.y + diffuseColor * ambient +
-                  specular * litR.z * specularFactor * normalSpec.a)).rgb,
-      diffuseColor.a);
-  // #fogCode
-  gl_FragColor = outColor;
-}
-
diff --git a/content/canvas/test/webgl/conformance/shaders/misc/shared-b.frag b/content/canvas/test/webgl/conformance/shaders/misc/shared-b.frag
deleted file mode 100755
index 77b4a76d7a9c..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/misc/shared-b.frag
+++ /dev/null
@@ -1,31 +0,0 @@
-// shared fragment shader should succeed.
-precision mediump float;
-varying vec4 v_position;
-varying vec2 v_texCoord;
-varying vec3 v_surfaceToLight;
-
-// #fogUniforms
-
-vec4 lit(float l ,float h, float m) {
-  return vec4(1.0,
-              max(l, 0.0),
-              (l > 0.0) ? pow(max(0.0, h), m) : 0.0,
-              1.0);
-}
-void main() {
-  vec4 normalSpec = vec4(0,0,0,0);  // #noNormalMap
-  vec4 reflection = vec4(0,0,0,0);  // #noReflection
-  vec3 surfaceToLight = normalize(v_surfaceToLight);
-  vec4 skyColor = vec4(0.5,0.5,1,1);  // #noReflection
-
-  vec3 halfVector = normalize(surfaceToLight);
-  vec4 litR = lit(1.0, 1.0, 10.0);
-  vec4 outColor = vec4(mix(
-      skyColor,
-      vec4(1,2,3,4) * (litR.y + litR.z * normalSpec.a),
-      1.0 - reflection.r).rgb,
-      1.0);
-  // #fogCode
-  gl_FragColor = outColor;
-}
-
diff --git a/content/canvas/test/webgl/conformance/shaders/misc/shared.vert b/content/canvas/test/webgl/conformance/shaders/misc/shared.vert
deleted file mode 100755
index 0acfbd2975c6..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/misc/shared.vert
+++ /dev/null
@@ -1,41 +0,0 @@
-// shared vertex shader should succeed.
-uniform mat4 viewProjection;
-uniform vec3 worldPosition;
-uniform vec3 nextPosition;
-uniform float fishLength;
-uniform float fishWaveLength;
-uniform float fishBendAmount;
-attribute vec4 position;
-attribute vec2 texCoord;
-varying vec4 v_position;
-varying vec2 v_texCoord;
-varying vec3 v_surfaceToLight;
-void main() {
-  vec3 vz = normalize(worldPosition - nextPosition);
-  vec3 vx = normalize(cross(vec3(0,1,0), vz));
-  vec3 vy = cross(vz, vx);
-  mat4 orientMat = mat4(
-    vec4(vx, 0),
-    vec4(vy, 0),
-    vec4(vz, 0),
-    vec4(worldPosition, 1));
-  mat4 world = orientMat;
-  mat4 worldViewProjection = viewProjection * world;
-  mat4 worldInverseTranspose = world;
-
-  v_texCoord = texCoord;
-  // NOTE:If you change this you need to change the laser code to match!
-  float mult = position.z > 0.0 ?
-      (position.z / fishLength) :
-      (-position.z / fishLength * 2.0);
-  float s = sin(mult * fishWaveLength);
-  float a = sign(s);
-  float offset = pow(mult, 2.0) * s * fishBendAmount;
-  v_position = (
-      worldViewProjection *
-      (position +
-       vec4(offset, 0, 0, 0)));
-  v_surfaceToLight = (world * position).xyz;
-  gl_Position = v_position;
-}
-
diff --git a/content/canvas/test/webgl/conformance/shaders/reserved/00_shaders.txt b/content/canvas/test/webgl/conformance/shaders/reserved/00_shaders.txt
deleted file mode 100644
index a0cfe27c6888..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/reserved/00_shaders.txt
+++ /dev/null
@@ -1,8 +0,0 @@
-_webgl_field.vert
-_webgl_function.vert
-_webgl_struct.vert
-_webgl_variable.vert
-webgl_field.vert
-webgl_function.vert
-webgl_struct.vert
-webgl_variable.vert
diff --git a/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_field.vert b/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_field.vert
deleted file mode 100644
index f1cfd30134c0..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_field.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// use of reserved _webgl prefix as structure field should fail
-struct Foo {
-  int _webgl_bar;
-};
-
-void main() {
-  Foo foo = Foo(1);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_function.vert b/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_function.vert
deleted file mode 100644
index afbedf16ec19..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_function.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// use of reserved _webgl prefix as function name should fail
-vec4 _webgl_foo() {
-  return vec4(1.0);
-}
-
-void main() {
-  gl_Position = _webgl_foo();
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_struct.vert b/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_struct.vert
deleted file mode 100644
index c9e1641ca3ff..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_struct.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// use of reserved _webgl prefix as structure name should fail
-struct _webgl_Foo {
-  int bar;
-};
-
-void main() {
-  _webgl_Foo foo = _webgl_Foo(1);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_variable.vert b/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_variable.vert
deleted file mode 100644
index 9aa11c9bbf00..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/reserved/_webgl_variable.vert
+++ /dev/null
@@ -1,4 +0,0 @@
-// use of reserved _webgl prefix as structure field should fail
-void main() {
-  vec4 _webgl_foo;
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/reserved/webgl_field.vert b/content/canvas/test/webgl/conformance/shaders/reserved/webgl_field.vert
deleted file mode 100644
index 64a55a3a1ddd..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/reserved/webgl_field.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// use of reserved webgl_ prefix as structure field should fail
-struct Foo {
-  int webgl_bar;
-};
-
-void main() {
-  Foo foo = Foo(1);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/reserved/webgl_function.vert b/content/canvas/test/webgl/conformance/shaders/reserved/webgl_function.vert
deleted file mode 100644
index 0e04417c4adf..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/reserved/webgl_function.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// use of reserved webgl_ prefix as function name should fail
-vec4 webgl_foo() {
-  return vec4(1.0);
-}
-
-void main() {
-  gl_Position = webgl_foo();
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/reserved/webgl_struct.vert b/content/canvas/test/webgl/conformance/shaders/reserved/webgl_struct.vert
deleted file mode 100644
index 87bc1ebca234..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/reserved/webgl_struct.vert
+++ /dev/null
@@ -1,8 +0,0 @@
-// use of reserved webgl_ prefix as structure name should fail
-struct webgl_Foo {
-  int bar;
-};
-
-void main() {
-  webgl_Foo foo = webgl_Foo(1);
-}
diff --git a/content/canvas/test/webgl/conformance/shaders/reserved/webgl_variable.vert b/content/canvas/test/webgl/conformance/shaders/reserved/webgl_variable.vert
deleted file mode 100644
index 24c708215955..000000000000
--- a/content/canvas/test/webgl/conformance/shaders/reserved/webgl_variable.vert
+++ /dev/null
@@ -1,4 +0,0 @@
-// use of reserved webgl_ prefix as variable should fail
-void main() {
-  vec4 webgl_foo;
-}
diff --git a/content/canvas/test/webgl/conformance/state/gl-get-calls.html b/content/canvas/test/webgl/conformance/state/gl-get-calls.html
index af402823ceb6..dbdd3e4d147c 100644
--- a/content/canvas/test/webgl/conformance/state/gl-get-calls.html
+++ b/content/canvas/test/webgl/conformance/state/gl-get-calls.html
@@ -127,7 +127,7 @@ else {
     shouldBe('context.getParameter(context.UNPACK_FLIP_Y_WEBGL)', 'false');
     shouldBe('context.getParameter(context.UNPACK_PREMULTIPLY_ALPHA_WEBGL)', 'false');
     shouldBe('context.getParameter(context.VIEWPORT)', '[0, 0, 2, 2]');
-    shouldBe('context.getParameter(context.NUM_COMPRESSED_TEXTURE_FORMATS)', '0');
+    shouldBeNonNull('context.getParameter(context.COMPRESSED_TEXTURE_FORMATS)');
 
     shouldBeTrue('context.getParameter(context.MAX_COMBINED_TEXTURE_IMAGE_UNITS) >= 8');
     shouldBeTrue('context.getParameter(context.MAX_CUBE_MAP_TEXTURE_SIZE) >= 16');
diff --git a/content/canvas/test/webgl/conformance/state/gl-geterror.html b/content/canvas/test/webgl/conformance/state/gl-geterror.html
index 37b1c52431d9..7fe3fc0b72d1 100644
--- a/content/canvas/test/webgl/conformance/state/gl-geterror.html
+++ b/content/canvas/test/webgl/conformance/state/gl-geterror.html
@@ -20,8 +20,7 @@ Use of this source code is governed by a BSD-style license that can be
 <script>
 description("Test getError.");
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 var tex = gl.createTexture();
 gl.bindTexture(gl.TEXTURE_2D, tex);
 
diff --git a/content/canvas/test/webgl/conformance/textures/00_test_list.txt b/content/canvas/test/webgl/conformance/textures/00_test_list.txt
index fab6e967bb65..1f266503f52c 100644
--- a/content/canvas/test/webgl/conformance/textures/00_test_list.txt
+++ b/content/canvas/test/webgl/conformance/textures/00_test_list.txt
@@ -17,6 +17,7 @@ tex-sub-image-2d.html
 texparameter-test.html
 texture-active-bind-2.html
 texture-active-bind.html
+--min-version 1.0.2 texture-clear.html
 texture-complete.html
 texture-formats-test.html
 texture-mips.html
diff --git a/content/canvas/test/webgl/conformance/textures/compressed-tex-image.html b/content/canvas/test/webgl/conformance/textures/compressed-tex-image.html
index e33ae22433eb..15cc57957d3b 100644
--- a/content/canvas/test/webgl/conformance/textures/compressed-tex-image.html
+++ b/content/canvas/test/webgl/conformance/textures/compressed-tex-image.html
@@ -22,8 +22,7 @@ description("This test ensures WebGL implementations correctly implement compres
 debug("");
 
 var wtu = WebGLTestUtils;
-var canvas = document.createElement("canvas");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext();
 
 const  COMPRESSED_RGB_S3TC_DXT1_EXT        = 0x83F0;
 const  COMPRESSED_RGBA_S3TC_DXT1_EXT       = 0x83F1;
diff --git a/content/canvas/test/webgl/conformance/textures/gl-teximage.html b/content/canvas/test/webgl/conformance/textures/gl-teximage.html
index 91f5b2ce3104..22611b17dbbb 100644
--- a/content/canvas/test/webgl/conformance/textures/gl-teximage.html
+++ b/content/canvas/test/webgl/conformance/textures/gl-teximage.html
@@ -20,8 +20,7 @@ Use of this source code is governed by a BSD-style license that can be
 <script>
 description("Test texImage2D conversions.");
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 gl.disable(gl.DITHER);
 var program = wtu.setupTexturedQuad(gl);
 
@@ -60,8 +59,8 @@ function runTests(imgs) {
   gl.disable(gl.BLEND);
   gl.disable(gl.DEPTH_TEST);
 
-  var width = canvas.width;
-  var height = canvas.height;
+  var width = gl.canvas.width;
+  var height = gl.canvas.height;
 
   function checkPixel(buf, x, y, color) {
     var off = (y * width + x) * 4;
diff --git a/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-array-buffer-view.html b/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-array-buffer-view.html
index ae06e624ebcd..226ad1d13936 100644
--- a/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-array-buffer-view.html
+++ b/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-array-buffer-view.html
@@ -175,8 +175,7 @@ function runTest()
 
 }
 
-var canvas = document.getElementById("example");
-gl = wtu.create3DContext(canvas);
+gl = wtu.create3DContext("example");
 var program = wtu.setupTexturedQuad(gl);
 gl.disable(gl.BLEND);
 
diff --git a/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-image.html b/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-image.html
index 98716d655428..a65c9b22d51d 100644
--- a/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-image.html
+++ b/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-image.html
@@ -26,8 +26,7 @@ function init()
 
     description('Verify texImage2D and texSubImage2D code paths taking Images');
 
-    var canvas = document.getElementById("example");
-    gl = wtu.create3DContext(canvas);
+    gl = wtu.create3DContext("example");
     var program = wtu.setupTexturedQuad(gl);
 
     gl.clearColor(0,0,0,1);
diff --git a/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-video.html b/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-video.html
index d945c360ae93..483758a9a062 100644
--- a/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-video.html
+++ b/content/canvas/test/webgl/conformance/textures/tex-image-and-sub-image-2d-with-video.html
@@ -25,8 +25,7 @@ function init()
 {
     description('Verify texImage2D and texSubImage2D code paths taking Video Elements');
 
-    var canvas = document.getElementById("example");
-    gl = wtu.create3DContext(canvas);
+    gl = wtu.create3DContext("example");
     var program = wtu.setupTexturedQuad(gl);
 
     gl.clearColor(0,0,0,1);
diff --git a/content/canvas/test/webgl/conformance/textures/tex-sub-image-2d-bad-args.html b/content/canvas/test/webgl/conformance/textures/tex-sub-image-2d-bad-args.html
index ea009710be4b..ab26e513dd76 100644
--- a/content/canvas/test/webgl/conformance/textures/tex-sub-image-2d-bad-args.html
+++ b/content/canvas/test/webgl/conformance/textures/tex-sub-image-2d-bad-args.html
@@ -16,10 +16,9 @@
 description('Tests texSubImage2D with bad arguments');
 
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("testbed");
 var c = document.getElementById("c");
 
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("testbed");
 var tex = gl.createTexture();
 gl.bindTexture(gl.TEXTURE_2D, tex);
 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, c);
diff --git a/content/canvas/test/webgl/conformance/textures/tex-sub-image-2d.html b/content/canvas/test/webgl/conformance/textures/tex-sub-image-2d.html
index 01bc096d149e..4186ddb3d638 100644
--- a/content/canvas/test/webgl/conformance/textures/tex-sub-image-2d.html
+++ b/content/canvas/test/webgl/conformance/textures/tex-sub-image-2d.html
@@ -38,8 +38,7 @@ var gl = wtu.create3DContext(canvas);
 gl.disable(gl.DITHER);
 var program = wtu.setupProgram(
     gl,
-    [wtu.setupSimpleTextureVertexShader(gl),
-     wtu.loadShaderFromScript(gl, "fshader")],
+    [wtu.setupSimpleTextureVertexShader(gl), "fshader"],
     ['vPosition', 'texCoord0']);
 wtu.setupUnitQuad(gl);
 var textureWidth = 256;
diff --git a/content/canvas/test/webgl/conformance/textures/texture-active-bind.html b/content/canvas/test/webgl/conformance/textures/texture-active-bind.html
index 6cedd1ed7712..b8478889e45a 100644
--- a/content/canvas/test/webgl/conformance/textures/texture-active-bind.html
+++ b/content/canvas/test/webgl/conformance/textures/texture-active-bind.html
@@ -39,19 +39,17 @@ function init()
   }
 
   description(
-      "Tests that glActiveTexture and glBindTexture work as expected." +
-      " Specifically texture targets are per active texture unit.");
+      "Tests that glActiveTexture and glBindTexture work as expected" +
+      "Specifically texture targets are per active texture unit.");
 
   var canvas2d = document.getElementById("canvas2d");
   var ctx2d = canvas2d.getContext("2d");
 
   var wtu = WebGLTestUtils;
-  var canvas = document.getElementById("example");
-  gl = wtu.create3DContext(canvas);
+  gl = wtu.create3DContext("example");
   var program = wtu.setupProgram(
       gl,
-      [wtu.loadShaderFromScript(gl, "vshader"),
-       wtu.setupSimpleTextureFragmentShader(gl)],
+      ["vshader", wtu.setupSimpleTextureFragmentShader(gl)],
       ['vPosition', 'texCoord0']);
   wtu.setupUnitQuad(gl);
   gl.disable(gl.DEPTH_TEST);
diff --git a/content/canvas/test/webgl/conformance/textures/texture-clear.html b/content/canvas/test/webgl/conformance/textures/texture-clear.html
new file mode 100644
index 000000000000..05e0a70b0aab
--- /dev/null
+++ b/content/canvas/test/webgl/conformance/textures/texture-clear.html
@@ -0,0 +1,42 @@
+<!--
+Copyright (c) 2011 The Chromium Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+ -->
+<!DOCTYPE html>
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebGL texture clear conformance test.</title>
+<link rel="stylesheet" href="../../resources/js-test-style.css"/>
+<script src="../../resources/js-test-pre.js"></script>
+<script src="../resources/webgl-test.js"> </script>
+<script src="../resources/webgl-test-utils.js"> </script>
+</head>
+<body>
+<canvas id="example" width="4" height="4" style="width: 40px; height: 30px;"></canvas>
+<div id="description"></div>
+<div id="console"></div>
+<script>
+description(document.title);
+var wtu = WebGLTestUtils;
+var gl = wtu.create3DContext("example");
+var program = wtu.setupTexturedQuad(gl);
+
+glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
+
+var tex = gl.createTexture();
+gl.bindTexture(gl.TEXTURE_2D, tex);
+gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
+gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, new Uint8Array([0,255,0,255]));
+wtu.drawQuad(gl);
+wtu.checkCanvas(
+    gl, [0, 255, 0, 255], "should be green");
+glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
+successfullyParsed = true;
+</script>
+<script src="../../resources/js-test-post.js"></script>
+
+</body>
+</html>
+
diff --git a/content/canvas/test/webgl/conformance/textures/texture-mips.html b/content/canvas/test/webgl/conformance/textures/texture-mips.html
index 947a329e8004..5358212d5f47 100644
--- a/content/canvas/test/webgl/conformance/textures/texture-mips.html
+++ b/content/canvas/test/webgl/conformance/textures/texture-mips.html
@@ -56,10 +56,7 @@ function init()
   gl = wtu.create3DContext(canvas);
   wtu.setupUnitQuad(gl, 0, 1);
   var program = wtu.setupProgram(
-      gl,
-      [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
-       wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
-      ['vPosition', 'texCoord0'], [0, 1]);
+      gl, ['vshader', 'fshader'], ['vPosition', 'texCoord0'], [0, 1]);
 
   gl.disable(gl.DEPTH_TEST);
   gl.disable(gl.BLEND);
diff --git a/content/canvas/test/webgl/conformance/textures/texture-npot.html b/content/canvas/test/webgl/conformance/textures/texture-npot.html
index 81ad3279bc0c..c494dd254905 100644
--- a/content/canvas/test/webgl/conformance/textures/texture-npot.html
+++ b/content/canvas/test/webgl/conformance/textures/texture-npot.html
@@ -40,8 +40,7 @@ void main()
 <script>
 description(document.title);
 var wtu = WebGLTestUtils;
-var canvas = document.getElementById("example");
-var gl = wtu.create3DContext(canvas);
+var gl = wtu.create3DContext("example");
 var program = wtu.setupTexturedQuad(gl);
 
 glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
@@ -119,10 +118,7 @@ glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");
 debug("");
 debug("check using cubemap");
 var program = wtu.setupProgram(
-    gl,
-    [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
-     wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
-    ['vPosition', 'texCoord0'], [0, 1]);
+    gl, ['vshader', 'fshader'], ['vPosition', 'texCoord0'], [0, 1]);
 var tex = gl.createTexture();
 
 // Check that an NPOT texture not on level 0 generates INVALID_VALUE
diff --git a/content/canvas/test/webgl/conformance/textures/texture-size-cube-maps.html b/content/canvas/test/webgl/conformance/textures/texture-size-cube-maps.html
index f5fc71f42ed9..5e0552c48ea6 100644
--- a/content/canvas/test/webgl/conformance/textures/texture-size-cube-maps.html
+++ b/content/canvas/test/webgl/conformance/textures/texture-size-cube-maps.html
@@ -50,8 +50,7 @@ gl = wtu.create3DContext(canvas);
 wtu.setupUnitQuad(gl, 0, 1);
 var program = wtu.setupProgram(
     gl,
-    [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
-     wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
+    ['vshader', 'fshader'],
     ['vPosition', 'texCoord0'], [0, 1]);
 var rotLoc = gl.getUniformLocation(program, "rotation");
 
diff --git a/content/canvas/test/webgl/conformance/textures/texture-size.html b/content/canvas/test/webgl/conformance/textures/texture-size.html
index 6ad0ad2afce4..5ac71f0bfffb 100644
--- a/content/canvas/test/webgl/conformance/textures/texture-size.html
+++ b/content/canvas/test/webgl/conformance/textures/texture-size.html
@@ -42,14 +42,10 @@ description("Checks that various sizes of textures render")
 var canvas;
 
 var wtu = WebGLTestUtils;
-canvas = document.getElementById("example");
-gl = wtu.create3DContext(canvas);
+gl = wtu.create3DContext("example");
 var program2D = wtu.setupTexturedQuad(gl);
 var programCubeMap = wtu.setupProgram(
-    gl,
-    [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
-     wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
-    ['vPosition', 'texCoord0'], [0, 1]);
+    gl, ['vshader', 'fshader'], ['vPosition', 'texCoord0'], [0, 1]);
 gl.disable(gl.DEPTH_TEST);
 gl.disable(gl.BLEND);
 var tex = gl.createTexture();
diff --git a/content/canvas/test/webgl/conformance/textures/texture-transparent-pixels-initialized.html b/content/canvas/test/webgl/conformance/textures/texture-transparent-pixels-initialized.html
index 8604fc33a6f9..5e40c0becbdb 100644
--- a/content/canvas/test/webgl/conformance/textures/texture-transparent-pixels-initialized.html
+++ b/content/canvas/test/webgl/conformance/textures/texture-transparent-pixels-initialized.html
@@ -50,8 +50,7 @@ function init()
     description('Tests there is no garbage in transparent regions of images uploaded as textures');
 
     wtu = WebGLTestUtils;
-    var canvas = document.getElementById("example");
-    gl = wtu.create3DContext(canvas);
+    gl = wtu.create3DContext("example");
     var program = wtu.setupTexturedQuad(gl);
     gl.clearColor(0.5,0.5,0.5,1);
     gl.clearDepth(1);
diff --git a/content/canvas/test/webgl/conformance/uniforms/uniform-samplers-test.html b/content/canvas/test/webgl/conformance/uniforms/uniform-samplers-test.html
index 938e6985b0c7..768f6e53c6d0 100644
--- a/content/canvas/test/webgl/conformance/uniforms/uniform-samplers-test.html
+++ b/content/canvas/test/webgl/conformance/uniforms/uniform-samplers-test.html
@@ -32,8 +32,7 @@ function init()
   var canvas2d = document.getElementById("canvas2d");
 
   var wtu = WebGLTestUtils;
-  var canvas = document.getElementById("example");
-  gl = wtu.create3DContext(canvas);
+  gl = wtu.create3DContext("example");
   var program = wtu.setupTexturedQuad(gl);
 
   var textureLoc = gl.getUniformLocation(program, "tex");
diff --git a/content/canvas/test/webgl/dont-load-image-from-internet.patch b/content/canvas/test/webgl/dont-load-image-from-internet.patch
index a367a4c677b3..648057cf3a16 100644
--- a/content/canvas/test/webgl/dont-load-image-from-internet.patch
+++ b/content/canvas/test/webgl/dont-load-image-from-internet.patch
@@ -1,5 +1,6 @@
 # HG changeset patch
-# Parent 30d84739fa6136571e995045960c3fd90b44382c
+# Parent 7840bd30b599390361d5afb91d40b4635b3a6f34
+
 diff --git a/content/canvas/test/webgl/conformance/more/functions/readPixelsBadArgs.html b/content/canvas/test/webgl/conformance/more/functions/readPixelsBadArgs.html
 --- a/content/canvas/test/webgl/conformance/more/functions/readPixelsBadArgs.html
 +++ b/content/canvas/test/webgl/conformance/more/functions/readPixelsBadArgs.html
@@ -63,3 +64,1354 @@ diff --git a/content/canvas/test/webgl/conformance/textures/origin-clean-conform
 +<img id="img" src="http://example.com/tests/content/canvas/test/webgl/resources/opengl_logo.jpg" style="display:none;">
  </body>
  </html>
+diff --git a/content/canvas/test/webgl/resources/opengl_logo.jpg b/content/canvas/test/webgl/resources/opengl_logo.jpg
+new file mode 100644
+index 0000000000000000000000000000000000000000..e3b70bef3f2c78736c72e263b63acea8d9a9467a
+GIT binary patch
+literal 5827
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+z>7{kwC_4&o`XgkEXyt|31@+L9s&s%6U1e29rL~OUks__rCnA9v0d@N&e6Z60#i1Yk
+zfihK>sxjS_8atzLZBp-F_Gjvr>05rMOgPHW4S~NLAwVeqmlI>Kx~PkyQNPi6#L$1&
+z>6_G<|K=^@Ypwq;8usl`|BLJ>Ki|L4Q8RY4{%=D^ya?6)TS2C&(SI*)T<rP(KZ=q2
+X_Tv?sRJ_R_z`v#f(^RTcw2JsY?lE<W
+
diff --git a/content/canvas/test/webgl/ext-texture-filter-anisotropic.patch b/content/canvas/test/webgl/ext-texture-filter-anisotropic.patch
index 66568642d186..0b015673a304 100644
--- a/content/canvas/test/webgl/ext-texture-filter-anisotropic.patch
+++ b/content/canvas/test/webgl/ext-texture-filter-anisotropic.patch
@@ -1,3 +1,6 @@
+# HG changeset patch
+# Parent b21ff47f08bc84b2f4b76348421f9144661da44f
+
 diff --git a/content/canvas/test/webgl/conformance/extensions/00_test_list.txt b/content/canvas/test/webgl/conformance/extensions/00_test_list.txt
 --- a/content/canvas/test/webgl/conformance/extensions/00_test_list.txt
 +++ b/content/canvas/test/webgl/conformance/extensions/00_test_list.txt
@@ -8,13 +11,13 @@ diff --git a/content/canvas/test/webgl/conformance/extensions/00_test_list.txt b
  oes-vertex-array-object.html
  webgl-debug-renderer-info.html
  webgl-debug-shaders.html
- --min-version 1.0.2 webgl-experimental-compressed-textures.html
+ --min-version 1.0.2 webgl-compressed-texture-s3tc.html
  
 diff --git a/content/canvas/test/webgl/conformance/extensions/ext-texture-filter-anisotropic.html b/content/canvas/test/webgl/conformance/extensions/ext-texture-filter-anisotropic.html
 new file mode 100644
 --- /dev/null
 +++ b/content/canvas/test/webgl/conformance/extensions/ext-texture-filter-anisotropic.html
-@@ -0,0 +1,157 @@
+@@ -0,0 +1,177 @@
 +<!--
 +Copyright (c) 2012 Florian Boesch <pyalot@gmail.com>. All rights reserved.
 +Use of this source code is governed by a BSD-style license that can be
@@ -46,6 +49,26 @@ new file mode 100644
 +var gl = create3DContext(canvas);
 +var ext = null;
 +
++var getExtension = function(){
++    ext = gl.getExtension("MOZ_EXT_texture_filter_anisotropic");
++    if(ext) return;
++
++    ext = gl.getExtension("WEBKIT_EXT_texture_filter_anisotropic");
++    if(ext) return;
++
++    ext = gl.getExtension("EXT_texture_filter_anisotropic");
++    if(ext) return;
++}
++
++var listsExtension = function(){
++    var supported = gl.getSupportedExtensions();
++    if(supported.indexOf("MOZ_EXT_texture_filter_anisotropic") >= 0) return true;
++    if(supported.indexOf("WEBKIT_EXT_texture_filter_anisotropic") >= 0) return true;
++    if(supported.indexOf("EXT_texture_filter_anisotropic") >= 0) return true;
++
++    return false;
++}
++
 +if (!gl) {
 +    testFailed("WebGL context does not exist");
 +} else {
@@ -55,7 +78,8 @@ new file mode 100644
 +    runHintTestDisabled();
 +
 +    // Query the extension and store globally so shouldBe can access it
-+    ext = gl.getExtension("MOZ_EXT_texture_filter_anisotropic");
++    getExtension();
++
 +    if (!ext) {
 +        testPassed("No EXT_texture_filter_anisotropic support -- this is legal");
 +
@@ -69,8 +93,7 @@ new file mode 100644
 +}
 +
 +function runSupportedTest(extensionEnabled) {
-+    var supported = gl.getSupportedExtensions();
-+    if (supported.indexOf("MOZ_EXT_texture_filter_anisotropic") >= 0) {
++    if (listsExtension()) {
 +        if (extensionEnabled) {
 +            testPassed("EXT_texture_filter_anisotropic listed as supported and getExtension succeeded");
 +        } else {
@@ -80,86 +103,86 @@ new file mode 100644
 +        if (extensionEnabled) {
 +            testFailed("EXT_texture_filter_anisotropic not listed as supported but getExtension succeeded");
 +        } else {
-+            testPassed("EXt_texture_filter_anisotropic not listed as supported and getExtension failed -- this is legal");
++            testPassed("EXT_texture_filter_anisotropic not listed as supported and getExtension failed -- this is legal");
 +        }
 +    }
 +}
 +
 +function runHintTestDisabled() {
-+    debug("Testing MAX_TEXTURE_MAX_ANISOTROPY with extension disabled");
++    debug("Testing MAX_TEXTURE_MAX_ANISOTROPY_EXT with extension disabled");
 +    
-+    var MAX_TEXTURE_MAX_ANISOTROPY = 0x84FF;
-+    gl.getParameter(MAX_TEXTURE_MAX_ANISOTROPY);
-+    glErrorShouldBe(gl, gl.INVALID_ENUM, "MAX_TEXTURE_MAX_ANISOTROPY should not be queryable if extension is disabled");
++    var MAX_TEXTURE_MAX_ANISOTROPY_EXT = 0x84FF;
++    gl.getParameter(MAX_TEXTURE_MAX_ANISOTROPY_EXT);
++    glErrorShouldBe(gl, gl.INVALID_ENUM, "MAX_TEXTURE_MAX_ANISOTROPY_EXT should not be queryable if extension is disabled");
 +    
-+    debug("Testing TEXTURE_MAX_ANISOTROPY with extension disabled");
-+    var TEXTURE_MAX_ANISOTROPY = 0x84FE;
++    debug("Testing TEXTURE_MAX_ANISOTROPY_EXT with extension disabled");
++    var TEXTURE_MAX_ANISOTROPY_EXT = 0x84FE;
 +    var texture = gl.createTexture();
 +    gl.bindTexture(gl.TEXTURE_2D, texture);
 +   
-+    gl.getTexParameter(gl.TEXTURE_2D, TEXTURE_MAX_ANISOTROPY);
-+    glErrorShouldBe(gl, gl.INVALID_ENUM, "TEXTURE_MAX_ANISOTROPY should not be queryable if extension is disabled");
++    gl.getTexParameter(gl.TEXTURE_2D, TEXTURE_MAX_ANISOTROPY_EXT);
++    glErrorShouldBe(gl, gl.INVALID_ENUM, "TEXTURE_MAX_ANISOTROPY_EXT should not be queryable if extension is disabled");
 +
-+    gl.texParameterf(gl.TEXTURE_2D, TEXTURE_MAX_ANISOTROPY, 1);
-+    glErrorShouldBe(gl, gl.INVALID_ENUM, "TEXTURE_MAX_ANISOTROPY should not be settable if extension is disabled");
++    gl.texParameterf(gl.TEXTURE_2D, TEXTURE_MAX_ANISOTROPY_EXT, 1);
++    glErrorShouldBe(gl, gl.INVALID_ENUM, "TEXTURE_MAX_ANISOTROPY_EXT should not be settable if extension is disabled");
 +    
-+    gl.texParameteri(gl.TEXTURE_2D, TEXTURE_MAX_ANISOTROPY, 1);
-+    glErrorShouldBe(gl, gl.INVALID_ENUM, "TEXTURE_MAX_ANISOTROPY should not be settable if extension is disabled");
++    gl.texParameteri(gl.TEXTURE_2D, TEXTURE_MAX_ANISOTROPY_EXT, 1);
++    glErrorShouldBe(gl, gl.INVALID_ENUM, "TEXTURE_MAX_ANISOTROPY_EXT should not be settable if extension is disabled");
 +
 +    gl.deleteTexture(texture);
 +}
 +
 +function runHintTestEnabled() {
-+    debug("Testing MAX_TEXTURE_MAX_ANISOTROPY with extension enabled");
++    debug("Testing MAX_TEXTURE_MAX_ANISOTROPY_EXT with extension enabled");
 +
-+    shouldBe("ext.MAX_TEXTURE_MAX_ANISOTROPY", "0x84FF");
++    shouldBe("ext.MAX_TEXTURE_MAX_ANISOTROPY_EXT", "0x84FF");
 +
-+    var max_anisotropy = gl.getParameter(ext.MAX_TEXTURE_MAX_ANISOTROPY);
-+    glErrorShouldBe(gl, gl.NO_ERROR, "MAX_TEXTURE_MAX_ANISOTROPY query should succeed if extension is enabled");
++    var max_anisotropy = gl.getParameter(ext.MAX_TEXTURE_MAX_ANISOTROPY_EXT);
++    glErrorShouldBe(gl, gl.NO_ERROR, "MAX_TEXTURE_MAX_ANISOTROPY_EXT query should succeed if extension is enabled");
 +
 +    if(max_anisotropy >= 2){
-+        testPassed("Minimum value of MAX_TEXTURE_MAX_ANISOTROPY is 2.0");
++        testPassed("Minimum value of MAX_TEXTURE_MAX_ANISOTROPY_EXT is 2.0");
 +    }
 +    else{
-+        testFailed("Minimum value of MAX_TEXTURE_MAX_ANISOTROPY is 2.0, returned values was: " + max_anisotropy);
++        testFailed("Minimum value of MAX_TEXTURE_MAX_ANISOTROPY_EXT is 2.0, returned values was: " + max_anisotropy);
 +    }
 +    
 +    // TODO make a texture and verify initial value == 1 and setting to less than 1 is invalid value
 +
-+    debug("Testing TEXTURE_MAX_ANISOTROPY with extension disabled");
-+    shouldBe("ext.TEXTURE_MAX_ANISOTROPY", "0x84FE");
++    debug("Testing TEXTURE_MAX_ANISOTROPY_EXT with extension disabled");
++    shouldBe("ext.TEXTURE_MAX_ANISOTROPY_EXT", "0x84FE");
 +
 +    var texture = gl.createTexture();
 +    gl.bindTexture(gl.TEXTURE_2D, texture);
 +   
-+    var queried_value = gl.getTexParameter(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY);
-+    glErrorShouldBe(gl, gl.NO_ERROR, "TEXTURE_MAX_ANISOTROPY query should succeed if extension is enabled");
++    var queried_value = gl.getTexParameter(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT);
++    glErrorShouldBe(gl, gl.NO_ERROR, "TEXTURE_MAX_ANISOTROPY_EXT query should succeed if extension is enabled");
 +
 +    if(queried_value == 1){
-+        testPassed("Initial value of TEXTURE_MAX_ANISOTROPY is 1.0");
++        testPassed("Initial value of TEXTURE_MAX_ANISOTROPY_EXT is 1.0");
 +    }
 +    else{
-+        testFailed("Initial value of TEXTURE_MAX_ANISOTROPY should be 1.0, returned value was: " + queried_value);
++        testFailed("Initial value of TEXTURE_MAX_ANISOTROPY_EXT should be 1.0, returned value was: " + queried_value);
 +    }
 +
-+    gl.texParameterf(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY, 0);
-+    glErrorShouldBe(gl, gl.INVALID_VALUE, "texParameterf TEXTURE_MAX_ANISOTROPY set to < 1 should be an invalid value");
++    gl.texParameterf(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT, 0);
++    glErrorShouldBe(gl, gl.INVALID_VALUE, "texParameterf TEXTURE_MAX_ANISOTROPY_EXT set to < 1 should be an invalid value");
 +    
-+    gl.texParameteri(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY, 0);
-+    glErrorShouldBe(gl, gl.INVALID_VALUE, "texParameteri TEXTURE_MAX_ANISOTROPY set to < 1 should be an invalid value");
++    gl.texParameteri(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT, 0);
++    glErrorShouldBe(gl, gl.INVALID_VALUE, "texParameteri TEXTURE_MAX_ANISOTROPY_EXT set to < 1 should be an invalid value");
 +    
-+    gl.texParameterf(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY, max_anisotropy);
-+    glErrorShouldBe(gl, gl.NO_ERROR, "texParameterf TEXTURE_MAX_ANISOTROPY set to >= 2 should should succeed");
++    gl.texParameterf(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT, max_anisotropy);
++    glErrorShouldBe(gl, gl.NO_ERROR, "texParameterf TEXTURE_MAX_ANISOTROPY_EXT set to >= 2 should should succeed");
 +    
-+    gl.texParameteri(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY, max_anisotropy);
-+    glErrorShouldBe(gl, gl.NO_ERROR, "texParameteri TEXTURE_MAX_ANISOTROPY set to >= 2 should should succeed");
++    gl.texParameteri(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT, max_anisotropy);
++    glErrorShouldBe(gl, gl.NO_ERROR, "texParameteri TEXTURE_MAX_ANISOTROPY_EXT set to >= 2 should should succeed");
 +
-+    var queried_value = gl.getTexParameter(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY);
++    var queried_value = gl.getTexParameter(gl.TEXTURE_2D, ext.TEXTURE_MAX_ANISOTROPY_EXT);
 +    if(queried_value == max_anisotropy){
-+        testPassed("Set value of TEXTURE_MAX_ANISOTROPY matches expecation");
++        testPassed("Set value of TEXTURE_MAX_ANISOTROPY_EXT matches expecation");
 +    }
 +    else{
-+        testFailed("Set value of TEXTURE_MAX_ANISOTROPY should be: " + max_anisotropy + " , returned value was: " + queried_value);
++        testFailed("Set value of TEXTURE_MAX_ANISOTROPY_EXT should be: " + max_anisotropy + " , returned value was: " + queried_value);
 +    }
 +
 +    gl.deleteTexture(texture);
diff --git a/content/canvas/test/webgl/extra/offscreen-issue.html b/content/canvas/test/webgl/extra/offscreen-issue.html
new file mode 100644
index 000000000000..0ccfd9442e61
--- /dev/null
+++ b/content/canvas/test/webgl/extra/offscreen-issue.html
@@ -0,0 +1,38 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+<meta charset="utf-8">
+<script type="text/javascript">
+
+window.onload = function() {
+  setup("1");
+  setup("2");
+}
+
+function setup(id) {
+  var c = document.getElementById(id);
+  var names = ["webgl", "experimental-webgl"];
+  for (var i = 0; i < names.length; ++i) {
+    gl = canvas.getContext(names[i]);
+    if (gl) {
+      break;
+    }
+  }
+  gl.clearColor(1,0,0,1);
+  gl.clear(gl.COLOR_BUFFER_BIT);
+  setTimeout(function() {
+    gl.enable(gl.SCISSOR_TEST);
+    gl.scissor(0,0,50,50);
+    gl.clearColor(0,1,0,1);
+    gl.clear(gl.COLOR_BUFFER_BIT);
+  }, 500);
+}
+</script>
+</head>
+<body>
+<canvas id="1"></canvas>
+<div style="height:4000px;">content that is tall like several articles</div>
+<canvas id="2"></canvas>
+</body>
+</html>
+
diff --git a/content/canvas/test/webgl/extra/out-of-bounds-uniform-array-access.html b/content/canvas/test/webgl/extra/out-of-bounds-uniform-array-access.html
index 5a091dab0a1d..a3029e499cb5 100644
--- a/content/canvas/test/webgl/extra/out-of-bounds-uniform-array-access.html
+++ b/content/canvas/test/webgl/extra/out-of-bounds-uniform-array-access.html
@@ -51,13 +51,10 @@ debug("Tests a WebGL program that accesses out of bounds uniform array elements"
 
 function main() {
   var wtu = WebGLTestUtils;
-  var canvas = document.getElementById("example");
-
-  var gl = wtu.create3DContext(canvas);
+  var gl = wtu.create3DContext("example");
   var program = wtu.setupProgram(
       gl,
-      [wtu.loadShaderFromScript(gl, 'vshader', gl.VERTEX_SHADER),
-       wtu.loadShaderFromScript(gl, 'fshader', gl.FRAGMENT_SHADER)],
+      ['vshader', 'fshader'],
       ['vPosition'], [0]);
   var gridRes = 255;
   wtu.setupQuad(gl, gridRes, 0);
diff --git a/content/canvas/test/webgl/extra/out-of-memory.html b/content/canvas/test/webgl/extra/out-of-memory.html
index df6a163bbddb..3225a9ae342f 100644
--- a/content/canvas/test/webgl/extra/out-of-memory.html
+++ b/content/canvas/test/webgl/extra/out-of-memory.html
@@ -1,92 +1,92 @@
-<!--
-Copyright (c) 2009 The Chromium Authors. All rights reserved.
-Use of this source code is governed by a BSD-style license that can be
-found in the LICENSE file.
--->
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
-  "http://www.w3.org/TR/html4/loose.dtd">
-<html>
-<head>
-<meta charset="utf-8">
-<title>WebGL Out Of Memory Test</title>
-<link rel="stylesheet" href="../resources/js-test-style.css"/>
-<script src="../resources/desktop-gl-constants.js" type="text/javascript"></script>
-<script src="../resources/js-test-pre.js"></script>
-<script src="../conformance/resources/webgl-test.js"></script>
-</head>
-<body>
-<div id="description"></div>
-<div id="console"></div>
-<canvas id="canvas" width="2" height="2"> </canvas>
-<script>
-debug("This tests WebGL running out of memory.");
-
-debug("");
-debug("Canvas.getContext");
-
-var gl = create3DContext(document.getElementById("canvas"));
-if (!gl) {
-  testFailed("context does not exist");
-} else {
-  testPassed("context exists");
-
-  debug("");
-  debug("Allocating shaders.");
-
-  function makeBigShader() {
-    var lines = [];
-    var line = "// ";
-    for (var ii = 0; ii < 1024; ++ii) {
-      line += String.fromCharCode(48 + ii % 10);
-    }
-    for (var ii = 0; ii < 1024; ++ii) {
-      lines[ii] = line;
-    }
-    var oneMB = lines.join();
-    for (var ii = 0; ii < 64; ++ii) {
-      lines[ii] = oneMB;
-    }
-    return lines.join("\n");
-  }
-
-  var shaderSource = makeBigShader();
-  debug("created " + Math.floor(shaderSource.length / 1024 / 1024) + "MB shader");
-
-  var intervalId;
-  var count = 0;
-
-  function makeShader() {
-    ++count;
-    debug ("creating shader #" + count + " mem = " + Math.floor(shaderSource.length * count / 1024 / 1024) + "MB");
-    var shader = gl.createShader(gl.VERTEX_SHADER);
-    if (shader == null) {
-      window.clearInterval(intervalId);
-      testPassed("createShader returns null");  // not sure this is a passing
-      finish();
-    } else {
-      gl.shaderSource(shader, shaderSource);
-      var err = gl.getError();
-      if (err != gl.NO_ERROR) {
-        window.clearInterval(intervalId);
-        assertMsg(err == gl.OUT_OF_MEMORY, "shaderSource returns OUT_OF_MEMORY");
-        finish();
-      }
-    }
-  }
-
-  intervalId = window.setInterval(makeShader, 1000/15);
-}
-
-function finish() {
-  debug("");
-  successfullyParsed = true;
-}
-
-</script>
-<!-- <script src="../resources/js-test-post.js"></script> -->
-
-<script>
-</script>
-
-</body>
-</html>
+<!--
+Copyright (c) 2009 The Chromium Authors. All rights reserved.
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+-->
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+  "http://www.w3.org/TR/html4/loose.dtd">
+<html>
+<head>
+<meta charset="utf-8">
+<title>WebGL Out Of Memory Test</title>
+<link rel="stylesheet" href="../resources/js-test-style.css"/>
+<script src="../resources/desktop-gl-constants.js" type="text/javascript"></script>
+<script src="../resources/js-test-pre.js"></script>
+<script src="../conformance/resources/webgl-test.js"></script>
+</head>
+<body>
+<div id="description"></div>
+<div id="console"></div>
+<canvas id="canvas" width="2" height="2"> </canvas>
+<script>
+debug("This tests WebGL running out of memory.");
+
+debug("");
+debug("Canvas.getContext");
+
+var gl = create3DContext(document.getElementById("canvas"));
+if (!gl) {
+  testFailed("context does not exist");
+} else {
+  testPassed("context exists");
+
+  debug("");
+  debug("Allocating shaders.");
+
+  function makeBigShader() {
+    var lines = [];
+    var line = "// ";
+    for (var ii = 0; ii < 1024; ++ii) {
+      line += String.fromCharCode(48 + ii % 10);
+    }
+    for (var ii = 0; ii < 1024; ++ii) {
+      lines[ii] = line;
+    }
+    var oneMB = lines.join();
+    for (var ii = 0; ii < 64; ++ii) {
+      lines[ii] = oneMB;
+    }
+    return lines.join("\n");
+  }
+
+  var shaderSource = makeBigShader();
+  debug("created " + Math.floor(shaderSource.length / 1024 / 1024) + "MB shader");
+
+  var intervalId;
+  var count = 0;
+
+  function makeShader() {
+    ++count;
+    debug ("creating shader #" + count + " mem = " + Math.floor(shaderSource.length * count / 1024 / 1024) + "MB");
+    var shader = gl.createShader(gl.VERTEX_SHADER);
+    if (shader == null) {
+      window.clearInterval(intervalId);
+      testPassed("createShader returns null");  // not sure this is a passing
+      finish();
+    } else {
+      gl.shaderSource(shader, shaderSource);
+      var err = gl.getError();
+      if (err != gl.NO_ERROR) {
+        window.clearInterval(intervalId);
+        assertMsg(err == gl.OUT_OF_MEMORY, "shaderSource returns OUT_OF_MEMORY");
+        finish();
+      }
+    }
+  }
+
+  intervalId = window.setInterval(makeShader, 1000/15);
+}
+
+function finish() {
+  debug("");
+  successfullyParsed = true;
+}
+
+</script>
+<!-- <script src="../resources/js-test-post.js"></script> -->
+
+<script>
+</script>
+
+</body>
+</html>
diff --git a/content/canvas/test/webgl/failing_tests_linux.txt b/content/canvas/test/webgl/failing_tests_linux.txt
index cc5592b87ae5..baa1246fa0f0 100644
--- a/content/canvas/test/webgl/failing_tests_linux.txt
+++ b/content/canvas/test/webgl/failing_tests_linux.txt
@@ -2,5 +2,4 @@ conformance/misc/uninitialized-test.html
 conformance/programs/gl-get-active-attribute.html
 conformance/textures/texture-mips.html
 conformance/uniforms/gl-uniform-bool.html
-conformance/more/conformance/quickCheckAPI-S_V.html
-conformance/renderbuffers/framebuffer-object-attachment.html
\ No newline at end of file
+conformance/renderbuffers/framebuffer-object-attachment.html
diff --git a/content/canvas/test/webgl/failing_tests_mac.txt b/content/canvas/test/webgl/failing_tests_mac.txt
index 1e27012a4843..40a171eaba4a 100644
--- a/content/canvas/test/webgl/failing_tests_mac.txt
+++ b/content/canvas/test/webgl/failing_tests_mac.txt
@@ -1,5 +1,4 @@
 conformance/glsl/misc/glsl-function-nodes.html
-conformance/more/conformance/quickCheckAPI-S_V.html
 conformance/programs/program-test.html
 conformance/textures/texture-mips.html
 conformance/textures/texture-npot.html
diff --git a/content/canvas/test/webgl/failing_tests_windows.txt b/content/canvas/test/webgl/failing_tests_windows.txt
index 50ab57d45213..5b4afb69ccf1 100644
--- a/content/canvas/test/webgl/failing_tests_windows.txt
+++ b/content/canvas/test/webgl/failing_tests_windows.txt
@@ -1,5 +1,3 @@
-conformance/glsl/functions/glsl-function-atan.html
 conformance/glsl/functions/glsl-function-atan-xy.html
-conformance/more/conformance/quickCheckAPI-S_V.html
 conformance/glsl/misc/struct-nesting-under-maximum.html
 conformance/more/functions/uniformfArrayLen1.html
diff --git a/content/canvas/test/webgl/log-more-info-about-test-failures.patch b/content/canvas/test/webgl/log-more-info-about-test-failures.patch
index db8e7cac787f..d5fc605ad2c5 100644
--- a/content/canvas/test/webgl/log-more-info-about-test-failures.patch
+++ b/content/canvas/test/webgl/log-more-info-about-test-failures.patch
@@ -1,9 +1,9 @@
 # HG changeset patch
-# Parent 0122002fbffad16de0690a21aa87d0999d0cdcb9
+# Parent 9294c812b3ebf3a2684b081886a65fa0cd0420b3
 diff --git a/content/canvas/test/webgl/conformance/glsl/misc/glsl-function-nodes.html b/content/canvas/test/webgl/conformance/glsl/misc/glsl-function-nodes.html
 --- a/content/canvas/test/webgl/conformance/glsl/misc/glsl-function-nodes.html
 +++ b/content/canvas/test/webgl/conformance/glsl/misc/glsl-function-nodes.html
-@@ -117,17 +117,18 @@ function init()
+@@ -118,17 +118,18 @@ function init()
      var bufFunction = new Uint8Array(width * height * 4);
      var bufMacro = new Uint8Array(width * height * 4);
  
@@ -26,7 +26,7 @@ diff --git a/content/canvas/test/webgl/conformance/glsl/misc/glsl-function-nodes
 diff --git a/content/canvas/test/webgl/conformance/misc/uninitialized-test.html b/content/canvas/test/webgl/conformance/misc/uninitialized-test.html
 --- a/content/canvas/test/webgl/conformance/misc/uninitialized-test.html
 +++ b/content/canvas/test/webgl/conformance/misc/uninitialized-test.html
-@@ -56,17 +56,19 @@ function checkNonZeroPixels(texture, tex
+@@ -57,17 +57,19 @@ function checkNonZeroPixels(texture, tex
      gl.readPixels(0, 0, texWidth, texHeight, gl.RGBA, gl.UNSIGNED_BYTE, data);
  
      var k = 0;
@@ -50,7 +50,7 @@ diff --git a/content/canvas/test/webgl/conformance/misc/uninitialized-test.html
 diff --git a/content/canvas/test/webgl/conformance/resources/webgl-test-utils.js b/content/canvas/test/webgl/conformance/resources/webgl-test-utils.js
 --- a/content/canvas/test/webgl/conformance/resources/webgl-test-utils.js
 +++ b/content/canvas/test/webgl/conformance/resources/webgl-test-utils.js
-@@ -389,21 +389,29 @@ var drawQuad = function(gl, opt_color) {
+@@ -445,21 +445,29 @@ var drawQuad = function(gl, opt_color) {
  var checkCanvasRect = function(gl, x, y, width, height, color, msg, errorRange) {
    errorRange = errorRange || 0;
    var buf = new Uint8Array(width * height * 4);
diff --git a/content/canvas/test/webgl/reference-cycle-test.patch b/content/canvas/test/webgl/reference-cycle-test.patch
new file mode 100644
index 000000000000..a7e46578ff9a
--- /dev/null
+++ b/content/canvas/test/webgl/reference-cycle-test.patch
@@ -0,0 +1,107 @@
+# HG changeset patch
+# Parent fae4a63127468bd6447453495c82b9f6713888fb
+
+diff --git a/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html b/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html
+--- a/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html
++++ b/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html
+@@ -116,16 +116,17 @@ if (!gl) {
+         testPassed("Successfully enabled OES_standard_derivatives extension");
+ 
+         runSupportedTest(true);
+ 
+         runHintTestEnabled();
+         runShaderTests(true);
+         runOutputTests();
+         runUniqueObjectTest();
++        runReferenceCycleTest();
+     }
+ }
+ 
+ function runSupportedTest(extensionEnabled) {
+     var supported = gl.getSupportedExtensions();
+     if (supported.indexOf("OES_standard_derivatives") >= 0) {
+         if (extensionEnabled) {
+             testPassed("OES_standard_derivatives listed as supported and getExtension succeeded");
+@@ -365,16 +366,30 @@ function runUniqueObjectTest()
+     } else if (window.opera && window.opera.collect) {
+         window.opera.collect();
+     } else {
+         attemptToForceGC();
+     }
+     shouldBe('gl.getExtension("OES_standard_derivatives").myProperty', '2');
+ }
+ 
++function runReferenceCycleTest()
++{
++    // create some reference cycles. The goal is to see if they cause leaks. The point is that
++    // some browser test runners have instrumentation to detect leaked refcounted objects.
++
++    debug("Testing reference cycles between context and extension objects");
++    var ext = gl.getExtension("OES_standard_derivatives");
++
++    // create cycle between extension and context, since the context has to hold a reference to the extension
++    ext.context = gl;
++
++    // create a self-cycle on the extension object
++    ext.ext = ext;
++}
+ 
+ debug("");
+ successfullyParsed = true;
+ </script>
+ <script src="../../resources/js-test-post.js"></script>
+ 
+ </body>
+ </html>
+diff --git a/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html b/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html
+--- a/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html
++++ b/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html
+@@ -81,16 +81,17 @@ if (!gl) {
+ 
+   if (!gl.getExtension("OES_texture_float")) {
+       testPassed("No OES_texture_float support -- this is legal");
+   } else {
+       testPassed("Successfully enabled OES_texture_float extension");
+       runTextureCreationTest(testProgram, true);
+       runRenderTargetTest(testProgram);
+       runUniqueObjectTest();
++      runReferenceCycleTest();
+   }
+ }
+ 
+ // Needs to be global for shouldBe to see it.
+ var pixels;
+ 
+ function allocateTexture()
+ {
+@@ -206,16 +207,30 @@ function runUniqueObjectTest()
+     } else if (window.opera && window.opera.collect) {
+         window.opera.collect();
+     } else {
+         attemptToForceGC();
+     }
+     shouldBe('gl.getExtension("OES_texture_float").myProperty', '2');
+ }
+ 
++function runReferenceCycleTest()
++{
++    // create some reference cycles. The goal is to see if they cause leaks. The point is that
++    // some browser test runners have instrumentation to detect leaked refcounted objects.
++
++    debug("Testing reference cycles between context and extension objects");
++    var ext = gl.getExtension("OES_texture_float");
++
++    // create cycle between extension and context, since the context has to hold a reference to the extension
++    ext.context = gl;
++
++    // create a self-cycle on the extension object
++    ext.ext = ext;
++}
+ 
+ debug("");
+ successfullyParsed = true;
+ </script>
+ <script src="../../resources/js-test-post.js"></script>
+ 
+ </body>
+ </html>
diff --git a/content/canvas/test/webgl/remove-uniqueObjectTest.patch b/content/canvas/test/webgl/remove-uniqueObjectTest.patch
deleted file mode 100644
index 2a5f27abc6b4..000000000000
--- a/content/canvas/test/webgl/remove-uniqueObjectTest.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-# HG changeset patch
-# Parent efec656cc42addae5aa96c6691031d54d46436fe
-diff --git a/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html b/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html
---- a/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html
-+++ b/content/canvas/test/webgl/conformance/extensions/oes-standard-derivatives.html
-@@ -115,17 +115,18 @@ if (!gl) {
-     } else {
-         testPassed("Successfully enabled OES_standard_derivatives extension");
- 
-         runSupportedTest(true);
- 
-         runHintTestEnabled();
-         runShaderTests(true);
-         runOutputTests();
--        runUniqueObjectTest();
-+      // similar to bug 683216, see the discussion in bug 630672
-+      // runUniqueObjectTest();
-     }
- }
- 
- function runSupportedTest(extensionEnabled) {
-     var supported = gl.getSupportedExtensions();
-     if (supported.indexOf("OES_standard_derivatives") >= 0) {
-         if (extensionEnabled) {
-             testPassed("OES_standard_derivatives listed as supported and getExtension succeeded");
-diff --git a/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html b/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html
---- a/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html
-+++ b/content/canvas/test/webgl/conformance/extensions/oes-texture-float.html
-@@ -80,17 +80,18 @@ if (!gl) {
-   runTextureCreationTest(testProgram, false);
- 
-   if (!gl.getExtension("OES_texture_float")) {
-       testPassed("No OES_texture_float support -- this is legal");
-   } else {
-       testPassed("Successfully enabled OES_texture_float extension");
-       runTextureCreationTest(testProgram, true);
-       runRenderTargetTest(testProgram);
--      runUniqueObjectTest();
-+      // bug 683216, see the discussion in bug 630672
-+      // runUniqueObjectTest();
-   }
- }
- 
- // Needs to be global for shouldBe to see it.
- var pixels;
- 
- function allocateTexture()
- {
diff --git a/content/canvas/test/webgl/resources/webgl-logo.png b/content/canvas/test/webgl/resources/webgl-logo.png
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diff --git a/content/canvas/test/webgl/webgl-conformance-tests.html b/content/canvas/test/webgl/webgl-conformance-tests.html
old mode 100755
new mode 100644
index 9a0dd22d29dc..395d24dacac6
--- a/content/canvas/test/webgl/webgl-conformance-tests.html
+++ b/content/canvas/test/webgl/webgl-conformance-tests.html
@@ -48,7 +48,7 @@ found in the LICENSE file.
 </style>
 <script type="text/javascript" src="resources/webgl-test-harness.js"></script>
 <script>
-var CONFORMANCE_TEST_VERSION = "1.0.1 (beta)";
+var CONFORMANCE_TEST_VERSION = "1.0.1";
 
 var OPTIONS = {
   version: CONFORMANCE_TEST_VERSION
@@ -68,14 +68,14 @@ function start() {
       canvas = document.createElement("canvas");
     }
     var context = null;
-    try {
-        context = canvas.getContext("webgl");
-    } catch(e) {
-    }
-    if (!context) {
+    var names = ["webgl", "experimental-webgl"];
+    for (var i = 0; i < names.length; ++i) {
       try {
-          context = canvas.getContext("experimental-webgl");
-      } catch(e) {
+        context = canvas.getContext(names[i]);
+      } catch (e) {
+      }
+      if (context) {
+        break;
       }
     }
     return context;
@@ -500,7 +500,7 @@ function start() {
 <tr style="height: 300px;">
 <td>
 <table>
-<tr><td><img src="http://www.khronos.org/img/api_logos/webgl-logo.png" /><br />WebGL Conformance Test Runner<br/>Version <span id="testVersion"></span><br/><input type="button" value="run tests" id="runTestsButton"/><br/><input type="button" style="visibility: hidden;" value="display text summary" id="showTextSummary"/>
+<tr><td><img src="resources/webgl-logo.png" /><br />WebGL Conformance Test Runner<br/>Version <span id="testVersion"></span><br/><input type="button" value="run tests" id="runTestsButton"/><br/><input type="button" style="visibility: hidden;" value="display text summary" id="showTextSummary"/>
 <div id="nowebgl" class="nowebgl" style="display: none;">This browser does not appear to support WebGL</div></td></tr>
 <tr><td><div id="loading">Loading Tests...</div>
 <div style="border: 1px">Results: <span id="fullresults"></span></div>