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

chrome/browser/ui/cocoa/infobars/infobar_container_cocoa.h

 // Copyright 2013 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_INFOBARS_INFOBAR_CONTAINER_COCOA_H_
 #define CHROME_BROWSER_UI_COCOA_INFOBARS_INFOBAR_CONTAINER_COCOA_H_
 
 #include "components/infobars/core/infobar_container.h"
 
 @class InfoBarContainerController;
 
 // The cocoa specific implementation of InfoBarContainer. This mostly serves as
 // a bridge for InfoBarContainerController.
 class InfoBarContainerCocoa : public infobars::InfoBarContainer,
                               public infobars::InfoBarContainer::Delegate {
  public:
   explicit InfoBarContainerCocoa(InfoBarContainerController* controller);
-  virtual ~InfoBarContainerCocoa();
+  ~InfoBarContainerCocoa() override;
 
  private:
   // InfoBarContainer:
-  virtual void PlatformSpecificAddInfoBar(infobars::InfoBar* infobar,
-                                          size_t position) override;
-  virtual void PlatformSpecificRemoveInfoBar(
-      infobars::InfoBar* infobar) override;
+  void PlatformSpecificAddInfoBar(infobars::InfoBar* infobar,
+                                  size_t position) override;
+  void PlatformSpecificRemoveInfoBar(infobars::InfoBar* infobar) override;
 
   // InfoBarContainer::Delegate:
-  virtual SkColor GetInfoBarSeparatorColor() const override;
-  virtual void InfoBarContainerStateChanged(bool is_animating) override;
-  virtual bool DrawInfoBarArrows(int* x) const override;
+  SkColor GetInfoBarSeparatorColor() const override;
+  void InfoBarContainerStateChanged(bool is_animating) override;
+  bool DrawInfoBarArrows(int* x) const override;
 
   InfoBarContainerController* controller_;  // weak, owns us.
 
   DISALLOW_COPY_AND_ASSIGN(InfoBarContainerCocoa);
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_INFOBARS_INFOBAR_CONTAINER_COCOA_H_