Add OVERRIDE to chrome/browser/ui/cocoa/.

chrome/browser/ui/cocoa/status_icons/status_icon_mac.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_STATUS_ICONS_STATUS_ICON_MAC_H_
 #define CHROME_BROWSER_UI_COCOA_STATUS_ICONS_STATUS_ICON_MAC_H_
 #pragma once
 
 #import <Cocoa/Cocoa.h>
 
@@ skipping 15 matching lines @@
   // Overridden from StatusIcon.
   virtual void SetImage(const SkBitmap& image) OVERRIDE;
   virtual void SetPressedImage(const SkBitmap& image) OVERRIDE;
   virtual void SetToolTip(const string16& tool_tip) OVERRIDE;
   virtual void DisplayBalloon(const SkBitmap& icon,
                               const string16& title,
                               const string16& contents) OVERRIDE;
 
  protected:
   // Overridden from StatusIcon.
-  virtual void UpdatePlatformContextMenu(ui::MenuModel* menu);
+  virtual void UpdatePlatformContextMenu(ui::MenuModel* menu) OVERRIDE;
 
  private:
   // Getter for item_ that allows lazy initialization.
   NSStatusItem* item();
   scoped_nsobject<NSStatusItem> item_;
 
   scoped_nsobject<StatusItemController> controller_;
 
   // Notification balloon.
   DesktopNotificationBalloon notification_;
 
   DISALLOW_COPY_AND_ASSIGN(StatusIconMac);
 };
 
 #endif // CHROME_BROWSER_UI_COCOA_STATUS_ICONS_STATUS_ICON_MAC_H_