Add OVERRIDE to ui/.

ui/base/animation/animation.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 UI_BASE_ANIMATION_ANIMATION_H_
 #define UI_BASE_ANIMATION_ANIMATION_H_
 #pragma once
 
+#include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/time.h"
 #include "ui/base/animation/animation_container_element.h"
 
 namespace gfx {
 class Rect;
 }
 
 namespace ui {
 
@@ skipping 55 matching lines @@
   // Invoked from stop to determine if cancel should be invoked. If this returns
   // true the delegate is notified the animation was canceled, otherwise the
   // delegate is notified the animation stopped.
   virtual bool ShouldSendCanceledFromStop();
 
   AnimationContainer* container() { return container_.get(); }
   base::TimeTicks start_time() const { return start_time_; }
   AnimationDelegate* delegate() { return delegate_; }
 
   // AnimationContainer::Element overrides
-  virtual void SetStartTime(base::TimeTicks start_time);
+  virtual void SetStartTime(base::TimeTicks start_time) OVERRIDE;
   virtual void Step(base::TimeTicks time_now) = 0;
-  virtual base::TimeDelta GetTimerInterval() const;
+  virtual base::TimeDelta GetTimerInterval() const OVERRIDE;
 
  private:
   // Interval for the animation.
   const base::TimeDelta timer_interval_;
 
   // If true we're running.
   bool is_animating_;
 
   // Our delegate; may be null.
   AnimationDelegate* delegate_;
 
   // Container we're in. If non-null we're animating.
   scoped_refptr<AnimationContainer> container_;
 
   // Time we started at.
   base::TimeTicks start_time_;
 
   DISALLOW_COPY_AND_ASSIGN(Animation);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_ANIMATION_ANIMATION_H_