replace OVERRIDE and FINAL with override and final in ash/

ash/system/tray/media_security/multi_profile_media_tray_item.cc

 // Copyright 2014 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/media_security/multi_profile_media_tray_item.h"
 
 #include "ash/ash_view_ids.h"
 #include "ash/media_delegate.h"
 #include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
@@ skipping 23 matching lines @@
     Shell::GetInstance()->system_tray_notifier()->AddMediaCaptureObserver(this);
     set_id(VIEW_ID_MEDIA_TRAY_VIEW);
   }
 
   virtual ~MultiProfileMediaTrayView() {
     Shell::GetInstance()->system_tray_notifier()->RemoveMediaCaptureObserver(
         this);
   }
 
   // MediaCaptureObserver:
-  virtual void OnMediaCaptureChanged() OVERRIDE {
+  virtual void OnMediaCaptureChanged() override {
     MediaDelegate* media_delegate = Shell::GetInstance()->media_delegate();
     SessionStateDelegate* session_state_delegate =
         Shell::GetInstance()->session_state_delegate();
     // The user at 0 is the current desktop user.
     for (MultiProfileIndex index = 1;
          index < session_state_delegate->NumberOfLoggedInUsers();
          ++index) {
       content::BrowserContext* context =
           session_state_delegate->GetBrowserContextByIndex(index);
       if (media_delegate->GetMediaCaptureState(context) != MEDIA_CAPTURE_NONE) {
@@ skipping 21 matching lines @@
     user::LoginStatus status) {
   tray_view_ = new tray::MultiProfileMediaTrayView(this);
   return tray_view_;
 }
 
 void MultiProfileMediaTrayItem::DestroyTrayView() {
   tray_view_ = NULL;
 }
 
 }  // namespace ash