Remove more non-aura windows code.

chrome/browser/ui/browser.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_BROWSER_H_
 #define CHROME_BROWSER_UI_BROWSER_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 549 matching lines @@
   virtual void ContentsZoomChange(bool zoom_in) OVERRIDE;
   virtual void WebContentsFocused(content::WebContents* content) OVERRIDE;
   virtual bool TakeFocus(content::WebContents* source, bool reverse) OVERRIDE;
   virtual gfx::Rect GetRootWindowResizerRect() const OVERRIDE;
   virtual void BeforeUnloadFired(content::WebContents* source,
                                  bool proceed,
                                  bool* proceed_to_fire_unload) OVERRIDE;
   virtual bool ShouldFocusLocationBarByDefault(
       content::WebContents* source) OVERRIDE;
   virtual void SetFocusToLocationBar(bool select_all) OVERRIDE;
-  virtual void RenderWidgetShowing() OVERRIDE;
   virtual int GetExtraRenderViewHeight() const OVERRIDE;
   virtual void ViewSourceForTab(content::WebContents* source,
                                 const GURL& page_url) OVERRIDE;
   virtual void ViewSourceForFrame(
       content::WebContents* source,
       const GURL& frame_url,
       const content::PageState& frame_page_state) OVERRIDE;
   virtual void ShowRepostFormWarningDialog(
       content::WebContents* source) OVERRIDE;
   virtual bool ShouldCreateWebContents(
@@ skipping 346 matching lines @@
   base::WeakPtrFactory<Browser> weak_factory_;
 
   scoped_ptr<BrowserLanguageStateObserver> language_state_observer_;
 
   scoped_ptr<chrome::ValidationMessageBubble> validation_message_bubble_;
 
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_H_