Pass RenderFrameHost to WebContentObservers' message handlers

chrome/browser/content_settings/tab_specific_content_settings.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_CONTENT_SETTINGS_TAB_SPECIFIC_CONTENT_SETTINGS_H_
 #define CHROME_BROWSER_CONTENT_SETTINGS_TAB_SPECIFIC_CONTENT_SETTINGS_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 265 matching lines @@
     load_plugins_link_enabled_ = enabled;
   }
 
   // Called to indicate whether access to the Pepper broker was allowed or
   // blocked.
   void SetPepperBrokerAllowed(bool allowed);
 
   // content::WebContentsObserver overrides.
   virtual void RenderFrameForInterstitialPageCreated(
       content::RenderFrameHost* render_frame_host) OVERRIDE;
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+  virtual bool OnMessageReceived(
+      const IPC::Message& message,
+      content::RenderFrameHost* render_frame_host) OVERRIDE;
   virtual void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) OVERRIDE;
   virtual void DidStartProvisionalLoadForFrame(
       int64 frame_id,
       int64 parent_frame_id,
       bool is_main_frame,
       const GURL& validated_url,
       bool is_error_page,
       bool is_iframe_srcdoc,
@@ skipping 118 matching lines @@
 
   // The devices to be displayed in the media bubble when the media stream
   // request is requesting certain specific devices.
   std::string media_stream_requested_audio_device_;
   std::string media_stream_requested_video_device_;
 
   DISALLOW_COPY_AND_ASSIGN(TabSpecificContentSettings);
 };
 
 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_TAB_SPECIFIC_CONTENT_SETTINGS_H_