Standardize usage of virtual/override/final in chrome/browser/ui/

chrome/browser/ui/cocoa/tab_contents/sad_tab_controller.h

 // Copyright (c) 2011 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_COCOA_TAB_CONTENTS_SAD_TAB_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_TAB_CONTENTS_SAD_TAB_CONTROLLER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/mac/scoped_nsobject.h"
 #include "chrome/browser/ui/sad_tab.h"
 
 #import <Cocoa/Cocoa.h>
 
 @class SadTabController;
 
 namespace chrome {
 
 class SadTabCocoa : public SadTab {
  public:
   explicit SadTabCocoa(content::WebContents* web_contents);
 
-  virtual ~SadTabCocoa();
+  ~SadTabCocoa() override;
 
  private:
   // Overridden from SadTab:
-  virtual void Show() override;
-  virtual void Close() override;
+  void Show() override;
+  void Close() override;
 
   base::scoped_nsobject<SadTabController> sad_tab_controller_;
 
   content::WebContents* web_contents_;
 
   DISALLOW_COPY_AND_ASSIGN(SadTabCocoa);
 };
 
 }  // namespace chrome
 
@@ skipping 10 matching lines @@
 // Cocoa action processing.
 - (IBAction)openLearnMoreAboutCrashLink:(id)sender;
 
 // Returns a weak reference to the WebContents whose WebContentsView created
 // this SadTabController.
 - (content::WebContents*)webContents;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_TAB_CONTENTS_SAD_TAB_CONTROLLER_H_