Add OVERRIDE to chrome/browser/chromeos/.

chrome/browser/chromeos/views/copy_background.h

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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_CHROMEOS_VIEWS_COPY_BACKGROUND_H_
 #define CHROME_BROWSER_CHROMEOS_VIEWS_COPY_BACKGROUND_H_
 #pragma once
 
+#include "base/compiler_specific.h"
 #include "views/background.h"
 
 namespace views {
 class View;
 }  // namespace views
 
 namespace chromeos {
 
 // A background that copies the background renderer from
 // other (typically one of parent chain) view.
 class CopyBackground : public views::Background {
  public:
   explicit CopyBackground(views::View* copy_from);
   virtual ~CopyBackground() {}
 
   // Overridden from views::Background.
-  virtual void Paint(gfx::Canvas* canvas, views::View* view) const;
+  virtual void Paint(gfx::Canvas* canvas, views::View* view) const OVERRIDE;
 
  private:
   views::View* background_owner_;
 
   DISALLOW_COPY_AND_ASSIGN(CopyBackground);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_VIEWS_COPY_BACKGROUND_H_