Add OVERRIDE to chrome/browser/.

chrome/browser/browsing_data_remover.h

 // Copyright (c) 2011 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 CHROME_BROWSER_BROWSING_DATA_REMOVER_H_
 #define CHROME_BROWSER_BROWSING_DATA_REMOVER_H_
 #pragma once
 
 #include <set>
 
@@ skipping 116 matching lines @@
   // a friend.
   friend class DeleteTask<BrowsingDataRemover>;
   virtual ~BrowsingDataRemover();
 
   // content::NotificationObserver method. Callback when TemplateURLService has
   // finished loading. Deletes the entries from the model, and if we're not
   // waiting on anything else notifies observers and deletes this
   // BrowsingDataRemover.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
-                       const content::NotificationDetails& details);
+                       const content::NotificationDetails& details) OVERRIDE;
 
   // WaitableEventWatcher implementation.
   // Called when plug-in data has been cleared. Invokes NotifyAndDeleteIfDone.
-  virtual void OnWaitableEventSignaled(base::WaitableEvent* waitable_event);
+  virtual void OnWaitableEventSignaled(
+      base::WaitableEvent* waitable_event) OVERRIDE;
 
   // If we're not waiting on anything, notifies observers and deletes this
   // object.
   void NotifyAndDeleteIfDone();
 
   // Callback when the network history has been deleted. Invokes
   // NotifyAndDeleteIfDone.
   void ClearedNetworkHistory();
 
   // Invoked on the IO thread to clear the HostCache, speculative data about
@@ skipping 104 matching lines @@
 
   ObserverList<Observer> observer_list_;
 
   // Used if we need to clear history.
   CancelableRequestConsumer request_consumer_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowsingDataRemover);
 };
 
 #endif  // CHROME_BROWSER_BROWSING_DATA_REMOVER_H_