replace OVERRIDE and FINAL with override and final in ash/

ash/system/chromeos/network/network_state_notifier.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_NETWORK_STATE_NOTIFIER_H_
 #define ASH_SYSTEM_CHROMEOS_NETWORK_NETWORK_STATE_NOTIFIER_H_
 
 #include <set>
 
 #include "ash/ash_export.h"
@@ skipping 22 matching lines @@
 // 2. It observes NetworkState changes to generate notifications when a
 //    Cellular network is out of credits.
 class ASH_EXPORT NetworkStateNotifier :
       public chromeos::NetworkStateHandlerObserver {
  public:
   NetworkStateNotifier();
   virtual ~NetworkStateNotifier();
 
   // NetworkStateHandlerObserver
   virtual void DefaultNetworkChanged(
-      const chromeos::NetworkState* network) OVERRIDE;
+      const chromeos::NetworkState* network) override;
   virtual void NetworkPropertiesUpdated(
-      const chromeos::NetworkState* network) OVERRIDE;
+      const chromeos::NetworkState* network) override;
 
   // Show a connection error notification. If |error_name| matches an error
   // defined in NetworkConnectionHandler for connect, configure, or activation
   // failed, then the associated message is shown; otherwise use the last_error
   // value for the network or a Shill property if available.
   void ShowNetworkConnectError(const std::string& error_name,
                                const std::string& service_path);
 
  private:
   void ConnectErrorPropertiesSucceeded(
@@ skipping 22 matching lines @@
   base::Time out_of_credits_notify_time_;
   std::set<std::string> cellular_activating_;
   base::WeakPtrFactory<NetworkStateNotifier> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkStateNotifier);
 };
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_CHROMEOS_NETWORK_NETWORK_STATE_NOTIFIER_H_