replace OVERRIDE and FINAL with override and final in ui/

ui/aura/window_tracker.h

 // Copyright (c) 2012 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_AURA_WINDOW_TRACKER_H_
 #define UI_AURA_WINDOW_TRACKER_H_
 
 #include <set>
 
 #include "base/basictypes.h"
@@ skipping 19 matching lines @@
   void Add(Window* window);
 
   // Removes |window| from the set of windows being tracked.
   void Remove(Window* window);
 
   // Returns true if |window| was previously added and has not been removed or
   // deleted.
   bool Contains(Window* window);
 
   // WindowObserver overrides:
-  virtual void OnWindowDestroying(Window* window) OVERRIDE;
+  virtual void OnWindowDestroying(Window* window) override;
 
  private:
   Windows windows_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTracker);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_WINDOW_TRACKER_H_