Bug 1747065 - remove plugin.load_flash_only setters which are no-ops r=mossop

Differential Revision: https://phabricator.services.mozilla.com/D134398

browser/base/content/test/contextMenu/browser.ini

@@ -1,6 +1,4 @@
 [DEFAULT]
-prefs =
-  plugin.load_flash_only=false
 support-files =
   subtst_contextmenu_webext.html
   test_contextmenu_links.html

browser/base/content/test/general/browser.ini

@@ -6,8 +6,6 @@
 ###############################################################################
 
 [DEFAULT]
-prefs =
-  plugin.load_flash_only=false # for plugin usage in browser_tab_dragdrop.js
 support-files =
   alltabslistener.html
   app_bug575561.html

browser/base/content/test/plugins/browser.ini

@@ -1,6 +1,4 @@
 [DEFAULT]
-prefs =
-  plugin.load_flash_only=false
 support-files =
   BlocklistTestProxy.jsm
   empty_file.html

browser/components/extensions/test/browser/browser.ini

@@ -6,7 +6,6 @@ prefs =
     dom.ipc.keepProcessesAlive.extension=1
     dom.animations-api.core.enabled=true
     dom.animations-api.timelines.enabled=true
-    plugin.load_flash_only=false
     javascript.options.asyncstack_capture_debuggee_only=false
 support-files =
   head.js

devtools/server/tests/xpcshell/test_addon_events.js

@@ -5,9 +5,6 @@
 
 const { AddonManager } = require("resource://gre/modules/AddonManager.jsm");
 add_task(async function testReloadExitedAddon() {
-  // Force sync plugin loading to avoid spurious install events from plugins.
-  Services.prefs.setBoolPref("plugin.load_flash_only", false);
-
   await startupAddonsManager();
 
   DevToolsServer.init();

dom/base/test/browser.ini

@@ -1,6 +1,4 @@
 [DEFAULT]
-prefs =
-  plugin.load_flash_only=false
 head = head.js
 support-files =
   audio.ogg

dom/base/test/mochitest.ini

@@ -1,6 +1,5 @@
 [DEFAULT]
 prefs =
-  plugin.load_flash_only=false
   formhelper.autozoom.force-disable.test-only=true
 support-files =
   audio.ogg

dom/html/test/mochitest.ini

@@ -1,6 +1,5 @@
 [DEFAULT]
 prefs =
-  plugin.load_flash_only=false
   dom.menuitem.enabled=true # only for test_bug617528.html
   dom.forms.inputmode=true # only for test_inputmode.html
 support-files =

dom/plugins/test/mochitest/mochitest.ini

@@ -1,6 +1,4 @@
 [DEFAULT]
-prefs =
-  plugin.load_flash_only=false
 skip-if = headless # crash on shutdown, no other failures
 support-files =
   large-pic.jpg

dom/security/test/mixedcontentblocker/mochitest.ini

@@ -1,7 +1,6 @@
 [DEFAULT]
 tags = mcb
 prefs =
-  plugin.load_flash_only=false
   security.mixed_content.upgrade_display_content=false
   dom.security.https_first=false
 support-files =

dom/security/test/referrer-policy/mochitest.ini

@@ -1,6 +1,4 @@
 [DEFAULT]
-prefs =
-  plugin.load_flash_only=false
 support-files =
   img_referrer_testserver.sjs
   referrer_header.sjs

dom/serviceworkers/test/mochitest-common.ini

@@ -1,6 +1,4 @@
 [DEFAULT]
-prefs =
-  plugin.load_flash_only=false
 support-files =
   abrupt_completion_worker.js
   worker.js

dom/tests/mochitest/bugs/mochitest.ini

@@ -38,8 +38,6 @@ support-files =
   test2_bug622361.html
   file1_bug414291.html
   file2_bug414291.html
-prefs =
-  plugin.load_flash_only=false
 
 [test_DOMWindowCreated_chromeonly.html]
 [test_bug132255.html]

layout/base/tests/chrome/chrome.ini

@@ -4,7 +4,6 @@ prefs =
   layout.css.individual-transform.enabled=true
   layout.css.motion-path.enabled=true
   layout.css.page-size.enabled=true
-  plugin.load_flash_only=false
 skip-if = os == 'android'
 support-files =
   animated.gif

testing/mochitest/chrome/chrome.ini

@@ -1,6 +1,4 @@
 [DEFAULT]
-prefs =
-  plugin.load_flash_only=false
 skip-if = os == 'android'
 support-files = test-dir/test-file
 

testing/mochitest/runtests.py

@@ -2120,10 +2120,6 @@ toolbar#nav-bar {
             "gfx.font_rendering.fallback.async": False,
         }
 
-        # Ideally we should set this in a manifest, but a11y tests do not run by manifest.
-        if options.flavor == "a11y":
-            prefs["plugin.load_flash_only"] = False
-
         if options.flavor == "browser" and options.timeout:
             prefs["testing.browserTestHarness.timeout"] = options.timeout
 

toolkit/components/forgetaboutsite/test/browser/browser.ini

@@ -1,5 +1,3 @@
 [DEFAULT]
-prefs =
-  plugin.load_flash_only=false
 
 [browser_cookieDomain.js]

toolkit/content/tests/browser/browser.ini

@@ -1,6 +1,4 @@
 [DEFAULT]
-prefs =
-  plugin.load_flash_only=false
 support-files =
   audio.ogg
   empty.png

widget/tests/chrome.ini

@@ -1,6 +1,4 @@
 [DEFAULT]
-prefs =
-  plugin.load_flash_only=false
 skip-if = os == 'android'
 support-files =
   empty_window.xhtml