Disable GPU compositing and accelerated 2d canvas for about: URLs

content/browser/tab_contents/tab_contents.cc

Index: content/browser/tab_contents/tab_contents.cc
diff --git a/content/browser/tab_contents/tab_contents.cc b/content/browser/tab_contents/tab_contents.cc
index 8aedfa7f9c46290c8475116fd9ad46800072ad3b..46a10a4372b1d4a9611b5809d291974d1959b89a 100644
--- a/content/browser/tab_contents/tab_contents.cc
+++ b/content/browser/tab_contents/tab_contents.cc
@@ -1623,10 +1623,11 @@ WebPreferences TabContents::GetWebkitPrefs() {
   WebPreferences web_prefs =
       RenderViewHostDelegateHelper::GetWebkitPrefs(profile, is_web_ui);
 
-  // Force accelerated compositing and 2d canvas off for chrome: and
-  // chrome-extension: pages.
+  // Force accelerated compositing and 2d canvas off for chrome:, about: and
+  // chrome-devtools: pages.
   if (GetURL().SchemeIs(chrome::kChromeDevToolsScheme) ||
-      GetURL().SchemeIs(chrome::kChromeUIScheme)) {
+      GetURL().SchemeIs(chrome::kChromeUIScheme) ||
+      GetURL().SchemeIs(chrome::kAboutScheme)) {
     web_prefs.accelerated_compositing_enabled = false;
     web_prefs.accelerated_2d_canvas_enabled = false;
   }