Fix pushState causing stop/reload button and favicon to flicker.

chrome/browser/ui/panels/panel_host.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_UI_PANELS_PANEL_HOST_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_HOST_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/extensions/extension_function_dispatcher.h"
@@ skipping 43 matching lines @@
   virtual void NavigationStateChanged(const content::WebContents* source,
                                       unsigned changed_flags) OVERRIDE;
   virtual void AddNewContents(content::WebContents* source,
                               content::WebContents* new_contents,
                               WindowOpenDisposition disposition,
                               const gfx::Rect& initial_pos,
                               bool user_gesture,
                               bool* was_blocked) OVERRIDE;
   virtual void ActivateContents(content::WebContents* contents) OVERRIDE;
   virtual void DeactivateContents(content::WebContents* contents) OVERRIDE;
-  virtual void LoadingStateChanged(content::WebContents* source) OVERRIDE;
+  virtual void LoadingStateChanged(content::WebContents* source,
+                                   bool to_different_document) OVERRIDE;
   virtual void CloseContents(content::WebContents* source) OVERRIDE;
   virtual void MoveContents(content::WebContents* source,
                             const gfx::Rect& pos) OVERRIDE;
   virtual bool IsPopupOrPanel(
       const content::WebContents* source) const OVERRIDE;
   virtual void ContentsZoomChange(bool zoom_in) OVERRIDE;
   virtual void HandleKeyboardEvent(
       content::WebContents* source,
       const content::NativeWebKeyboardEvent& event) OVERRIDE;
   virtual void WebContentsFocused(content::WebContents* contents) OVERRIDE;
@@ skipping 32 matching lines @@
 
   scoped_ptr<content::WebContents> web_contents_;
 
   // The following factory is used to close the panel via the message loop.
   base::WeakPtrFactory<PanelHost> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PanelHost);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_HOST_H_