Stop disabling force_compositing_mode for background RenderViews.

content/browser/web_contents/web_contents_impl.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 CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 322 matching lines @@
                                     const base::string16& message,
                                     const base::string16& default_prompt,
                                     const GURL& frame_url,
                                     JavaScriptMessageType type,
                                     IPC::Message* reply_msg) OVERRIDE;
   virtual void RunBeforeUnloadConfirm(RenderFrameHost* rfh,
                                       const base::string16& message,
                                       bool is_reload,
                                       IPC::Message* reply_msg) OVERRIDE;
   virtual WebContents* GetAsWebContents() OVERRIDE;
+  virtual bool IsNeverVisible() OVERRIDE;
 
   // RenderViewHostDelegate ----------------------------------------------------
   virtual RenderViewHostDelegateView* GetDelegateView() OVERRIDE;
   virtual bool OnMessageReceived(RenderViewHost* render_view_host,
                                  const IPC::Message& message) OVERRIDE;
   // RenderFrameHostDelegate has the same method, so list it there because this
   // interface is going away.
   // virtual WebContents* GetAsWebContents() OVERRIDE;
   virtual gfx::Rect GetRootWindowResizerRect() const OVERRIDE;
   virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE;
@@ skipping 734 matching lines @@
 
   // Whether the last JavaScript dialog shown was suppressed. Used for testing.
   bool last_dialog_suppressed_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_