replace OVERRIDE and FINAL with override and final in ash/

ash/system/chromeos/network/tray_vpn.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 ASH_SYSTEM_CHROMEOS_NETWORK_TRAY_VPN_H
 #define ASH_SYSTEM_CHROMEOS_NETWORK_TRAY_VPN_H
 
 #include "ash/system/chromeos/network/tray_network_state_observer.h"
 #include "ash/system/tray/system_tray_item.h"
 #include "base/memory/scoped_ptr.h"
 
 namespace ash {
 class TrayNetworkStateObserver;
 
 namespace tray {
 class NetworkDetailedView;
 class VpnDefaultView;
 class VpnDetailedView;
 }
 
 class TrayVPN : public SystemTrayItem,
                 public TrayNetworkStateObserver::Delegate {
  public:
   explicit TrayVPN(SystemTray* system_tray);
   virtual ~TrayVPN();
 
   // SystemTrayItem
-  virtual views::View* CreateTrayView(user::LoginStatus status) OVERRIDE;
-  virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
-  virtual views::View* CreateDetailedView(user::LoginStatus status) OVERRIDE;
-  virtual void DestroyTrayView() OVERRIDE;
-  virtual void DestroyDefaultView() OVERRIDE;
-  virtual void DestroyDetailedView() OVERRIDE;
-  virtual void UpdateAfterLoginStatusChange(user::LoginStatus status) OVERRIDE;
+  virtual views::View* CreateTrayView(user::LoginStatus status) override;
+  virtual views::View* CreateDefaultView(user::LoginStatus status) override;
+  virtual views::View* CreateDetailedView(user::LoginStatus status) override;
+  virtual void DestroyTrayView() override;
+  virtual void DestroyDefaultView() override;
+  virtual void DestroyDetailedView() override;
+  virtual void UpdateAfterLoginStatusChange(user::LoginStatus status) override;
   virtual void UpdateAfterShelfAlignmentChange(
-      ShelfAlignment alignment) OVERRIDE;
+      ShelfAlignment alignment) override;
 
   // TrayNetworkStateObserver::Delegate
-  virtual void NetworkStateChanged(bool list_changed) OVERRIDE;
+  virtual void NetworkStateChanged(bool list_changed) override;
   virtual void NetworkServiceChanged(
-      const chromeos::NetworkState* network) OVERRIDE;
+      const chromeos::NetworkState* network) override;
 
  private:
   tray::VpnDefaultView* default_;
   tray::NetworkDetailedView* detailed_;
   scoped_ptr<TrayNetworkStateObserver> network_state_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(TrayVPN);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_CHROMEOS_NETWORK_TRAY_VPN_H