Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/html

Source/core/html/track/TrackListBase.h

 // 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.
 
 #ifndef TrackListBase_h
 #define TrackListBase_h
 
 #include "core/events/EventTarget.h"
 
 #include "core/html/HTMLMediaElement.h"
@@ skipping 35 matching lines @@
         }
 
         return 0;
     }
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(change);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(addtrack);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(removetrack);
 
     // EventTarget interface
-    virtual ExecutionContext* executionContext() const OVERRIDE
+    virtual ExecutionContext* executionContext() const override
     {
         if (m_mediaElement)
             return m_mediaElement->executionContext();
         return 0;
     }
 
 #if !ENABLE(OILPAN)
     void shutdown()
     {
         removeAll();
@@ skipping 60 matching lines @@
         m_mediaElement->scheduleEvent(event);
     }
 
     WillBeHeapVector<RefPtrWillBeMember<T> > m_tracks;
     RawPtrWillBeMember<HTMLMediaElement> m_mediaElement;
 };
 
 }
 
 #endif