Remove obsolete chromeos specific code

chrome/browser/ui/gtk/browser_window_gtk.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_GTK_BROWSER_WINDOW_GTK_H_
 #define CHROME_BROWSER_UI_GTK_BROWSER_WINDOW_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 
@@ skipping 100 matching lines @@
   virtual bool IsFullscreen() const OVERRIDE;
   virtual bool IsFullscreenBubbleVisible() const OVERRIDE;
   virtual LocationBar* GetLocationBar() const OVERRIDE;
   virtual void SetFocusToLocationBar(bool select_all) OVERRIDE;
   virtual void UpdateReloadStopState(bool is_loading, bool force) OVERRIDE;
   virtual void UpdateToolbar(TabContentsWrapper* contents,
                              bool should_restore_state) OVERRIDE;
   virtual void FocusToolbar() OVERRIDE;
   virtual void FocusAppMenu() OVERRIDE;
   virtual void FocusBookmarksToolbar() OVERRIDE;
-  virtual void FocusChromeOSStatus() OVERRIDE;
   virtual void RotatePaneFocus(bool forwards) OVERRIDE;
   virtual bool IsBookmarkBarVisible() const OVERRIDE;
   virtual bool IsBookmarkBarAnimating() const OVERRIDE;
   virtual bool IsTabStripEditable() const OVERRIDE;
   virtual bool IsToolbarVisible() const OVERRIDE;
   virtual gfx::Rect GetRootWindowResizerRect() const OVERRIDE;
   virtual bool IsPanel() const OVERRIDE;
   virtual void ConfirmAddSearchProvider(const TemplateURL* template_url,
                                         Profile* profile) OVERRIDE;
   virtual void ToggleBookmarkBar() OVERRIDE;
@@ skipping 443 matching lines @@
   bool debounce_timer_disabled_;
 
   FullscreenExitBubbleType fullscreen_exit_bubble_type_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserWindowGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_BROWSER_WINDOW_GTK_H_