replace OVERRIDE and FINAL with override and final in ash/

ash/drag_drop/drag_drop_tracker.cc

 // 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.
 
 #include "ash/drag_drop/drag_drop_tracker.h"
 
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/coordinate_conversion.h"
 #include "ui/aura/client/window_tree_client.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/events/event.h"
 #include "ui/gfx/screen.h"
 #include "ui/wm/core/coordinate_conversion.h"
 #include "ui/wm/public/activation_delegate.h"
 
 namespace ash {
 namespace {
 
 // An activation delegate which disables activating the drag and drop window.
 class CaptureWindowActivationDelegate
     : public aura::client::ActivationDelegate {
  public:
   CaptureWindowActivationDelegate() {}
   virtual ~CaptureWindowActivationDelegate() {}
 
   // aura::client::ActivationDelegate overrides:
-  virtual bool ShouldActivate() const OVERRIDE {
+  virtual bool ShouldActivate() const override {
     return false;
   }
 
  private:
 
   DISALLOW_COPY_AND_ASSIGN(CaptureWindowActivationDelegate);
 };
 
 // Creates a window for capturing drag events.
 aura::Window* CreateCaptureWindow(aura::Window* context_root,
@@ skipping 55 matching lines @@
       &target_root_location);
   return new ui::MouseEvent(event.type(),
                             target_location,
                             target_root_location,
                             event.flags(),
                             static_cast<const ui::MouseEvent&>(event).
                                 changed_button_flags());
 }
 
 }  // namespace ash