replace OVERRIDE and FINAL with override and final in ash/

ash/system/tray_update.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/system/tray_update.h"
 
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_layout_manager.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
@@ skipping 66 matching lines @@
     AddChildView(image);
     AddChildView(new views::Label(
         bundle.GetLocalizedString(IDS_ASH_STATUS_TRAY_UPDATE)));
     SetAccessibleName(bundle.GetLocalizedString(IDS_ASH_STATUS_TRAY_UPDATE));
   }
 
   virtual ~UpdateView() {}
 
  private:
   // Overridden from ActionableView.
-  virtual bool PerformAction(const ui::Event& event) OVERRIDE {
+  virtual bool PerformAction(const ui::Event& event) override {
     ash::Shell::GetInstance()->
         system_tray_delegate()->RequestRestartForUpdate();
     return true;
   }
 
   DISALLOW_COPY_AND_ASSIGN(UpdateView);
 };
 
 }
 
@@ skipping 26 matching lines @@
                  &UpdateNagger::Nag);
   }
 
  private:
   void Nag() {
     owner_->PopupDetailedView(kShowUpdateNaggerForSeconds, false);
   }
 
   // Overridden from ui::LayerAnimationObserver.
   virtual void OnLayerAnimationEnded(
-      ui::LayerAnimationSequence* sequence) OVERRIDE {
+      ui::LayerAnimationSequence* sequence) override {
     // TODO(oshima): Find out if the updator will be shown on non
     // primary display.
     if (Shell::GetPrimaryRootWindowController()->shelf()->IsVisible())
       timer_.Stop();
     else if (!timer_.IsRunning())
       RestartTimer();
   }
 
   virtual void OnLayerAnimationAborted(
-      ui::LayerAnimationSequence* sequence) OVERRIDE {}
+      ui::LayerAnimationSequence* sequence) override {}
 
   virtual void OnLayerAnimationScheduled(
-      ui::LayerAnimationSequence* sequence) OVERRIDE {}
+      ui::LayerAnimationSequence* sequence) override {}
 
   SystemTrayItem* owner_;
   base::OneShotTimer<UpdateNagger> timer_;
 
   DISALLOW_COPY_AND_ASSIGN(UpdateNagger);
 };
 
 }  // namespace tray
 
 TrayUpdate::TrayUpdate(SystemTray* system_tray)
@@ skipping 35 matching lines @@
   SetImageFromResourceId(DecideResource(severity_, false));
   tray_view()->SetVisible(true);
   if (!Shell::GetPrimaryRootWindowController()->shelf()->IsVisible() &&
       !nagger_.get()) {
     // The shelf is not visible, and there is no nagger scheduled.
     nagger_.reset(new tray::UpdateNagger(this));
   }
 }
 
 }  // namespace ash