diff --git a/gfx/gl/GLBlitHelper.cpp b/gfx/gl/GLBlitHelper.cpp
index 307e55975eeb..0b4ec1925f99 100644
--- a/gfx/gl/GLBlitHelper.cpp
+++ b/gfx/gl/GLBlitHelper.cpp
@@ -91,6 +91,7 @@ bool
 GLBlitHelper::InitTexQuadProgram(BlitType target)
 {
     const char kTexBlit_VertShaderSource[] = "\
+        #version 100                                  \n\
         #ifdef GL_ES                                  \n\
         precision mediump float;                      \n\
         #endif                                        \n\
@@ -109,6 +110,7 @@ GLBlitHelper::InitTexQuadProgram(BlitType target)
     ";
 
     const char kTex2DBlit_FragShaderSource[] = "\
+        #version 100                                        \n\
         #ifdef GL_ES                                        \n\
         #ifdef GL_FRAGMENT_PRECISION_HIGH                   \n\
             precision highp float;                          \n\
@@ -127,6 +129,7 @@ GLBlitHelper::InitTexQuadProgram(BlitType target)
     ";
 
     const char kTex2DRectBlit_FragShaderSource[] = "\
+        #version 100                                                  \n\
         #ifdef GL_FRAGMENT_PRECISION_HIGH                             \n\
             precision highp float;                                    \n\
         #else                                                         \n\
@@ -146,6 +149,7 @@ GLBlitHelper::InitTexQuadProgram(BlitType target)
     ";
 #ifdef ANDROID /* MOZ_WIDGET_ANDROID || MOZ_WIDGET_GONK */
     const char kTexExternalBlit_FragShaderSource[] = "\
+        #version 100                                                    \n\
         #extension GL_OES_EGL_image_external : require                  \n\
         #ifdef GL_FRAGMENT_PRECISION_HIGH                               \n\
             precision highp float;                                      \n\
@@ -174,6 +178,7 @@ GLBlitHelper::InitTexQuadProgram(BlitType target)
     [B] [1.16438, 2.01723, 0.00000] [Cr - 0.50196]
     */
     const char kTexYUVPlanarBlit_FragShaderSource[] = "\
+        #version 100                                                        \n\
         #ifdef GL_ES                                                        \n\
         precision mediump float;                                            \n\
         #endif                                                              \n\
@@ -200,6 +205,7 @@ GLBlitHelper::InitTexQuadProgram(BlitType target)
 
 #ifdef XP_MACOSX
     const char kTexNV12PlanarBlit_FragShaderSource[] = "\
+        #version 100                                                             \n\
         #extension GL_ARB_texture_rectangle : require                            \n\
         #ifdef GL_ES                                                             \n\
         precision mediump float                                                  \n\
@@ -383,18 +389,16 @@ GLBlitHelper::InitTexQuadProgram(BlitType target)
         // Cache and set attribute and uniform
         mGL->fUseProgram(program);
         switch (target) {
+#ifdef ANDROID
+            case ConvertSurfaceTexture:
+            case ConvertGralloc:
+#endif
             case BlitTex2D:
             case BlitTexRect:
-            case ConvertEGLImage:
-            case ConvertSurfaceTexture:
-            case ConvertGralloc: {
-#ifdef ANDROID
+            case ConvertEGLImage: {
                 GLint texUnitLoc = mGL->fGetUniformLocation(program, "uTexUnit");
                 MOZ_ASSERT(texUnitLoc != -1, "uniform uTexUnit not found");
                 mGL->fUniform1i(texUnitLoc, 0);
-#else
-                MOZ_ASSERT_UNREACHABLE("gralloc not support on non-android");
-#endif
                 break;
             }
             case ConvertPlanarYCbCr: {
@@ -434,6 +438,8 @@ GLBlitHelper::InitTexQuadProgram(BlitType target)
 #endif
                 break;
             }
+            default:
+                return false;
         }
         MOZ_ASSERT(mGL->fGetAttribLocation(program, "aPosition") == 0);
         mYFlipLoc = mGL->fGetUniformLocation(program, "uYflip");