Stop disabling force_compositing_mode for background RenderViews.

chrome/browser/chrome_content_browser_client.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_
 #define CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_
 
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 215 matching lines @@
                                int opener_id,
                                bool* no_javascript_access) OVERRIDE;
   virtual std::string GetWorkerProcessTitle(
       const GURL& url, content::ResourceContext* context) OVERRIDE;
   virtual void ResourceDispatcherHostCreated() OVERRIDE;
   virtual content::SpeechRecognitionManagerDelegate*
       GetSpeechRecognitionManagerDelegate() OVERRIDE;
   virtual net::NetLog* GetNetLog() OVERRIDE;
   virtual content::AccessTokenStore* CreateAccessTokenStore() OVERRIDE;
   virtual bool IsFastShutdownPossible() OVERRIDE;
+  virtual bool IsRenderViewHostForBackground(content::RenderViewHost* rvh)
+      OVERRIDE;
   virtual void OverrideWebkitPrefs(content::RenderViewHost* rvh,
                                    const GURL& url,
                                    WebPreferences* prefs) OVERRIDE;
   virtual void UpdateInspectorSetting(content::RenderViewHost* rvh,
                                       const std::string& key,
                                       const std::string& value) OVERRIDE;
   virtual void BrowserURLHandlerCreated(
       content::BrowserURLHandler* handler) OVERRIDE;
   virtual void ClearCache(content::RenderViewHost* rvh) OVERRIDE;
   virtual void ClearCookies(content::RenderViewHost* rvh) OVERRIDE;
@@ skipping 58 matching lines @@
       permissions_policy_delegate_;
 
   friend class DisableWebRtcEncryptionFlagTest;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeContentBrowserClient);
 };
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_CHROME_CONTENT_BROWSER_CLIENT_H_