Stop disabling force_compositing_mode for background RenderViews.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 843da93fd5eb1ce95de38e064441be8f64c0d8d1..eabcae5fa30ff93e35a231e7f9f5a4fa8fc57259 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -2233,6 +2233,18 @@ bool ChromeContentBrowserClient::IsFastShutdownPossible() {
   return true;
 }
 
+bool ChromeContentBrowserClient::IsRenderViewHostForBackground(
+    RenderViewHost* rvh) {
+  WebContents* web_contents = WebContents::FromRenderViewHost(rvh);
+  extensions::ViewType view_type = extensions::GetViewType(web_contents);
+  bool background =
+      view_type == extensions::VIEW_TYPE_BACKGROUND_CONTENTS ||
+      view_type == extensions::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE;
+  if (background)
+    LOG(ERROR) << "DISABLING FORCE COMPOSITING MODE";
+  return background;
+}
+
 void ChromeContentBrowserClient::OverrideWebkitPrefs(
     RenderViewHost* rvh, const GURL& url, WebPreferences* web_prefs) {
   Profile* profile = Profile::FromBrowserContext(
@@ -2363,11 +2375,6 @@ void ChromeContentBrowserClient::OverrideWebkitPrefs(
 
   if (view_type == extensions::VIEW_TYPE_NOTIFICATION) {
     web_prefs->allow_scripts_to_close_windows = true;
-  } else if (view_type == extensions::VIEW_TYPE_BACKGROUND_CONTENTS) {
-    // Disable all kinds of acceleration for background pages.
-    // See http://crbug.com/96005 and http://crbug.com/96006
-    web_prefs->force_compositing_mode = false;
-    web_prefs->accelerated_compositing_enabled = false;
   }
 
 #if defined(OS_CHROMEOS)