Add OVERRIDE to webkit/.

webkit/glue/webmediaplayer_impl.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.
 
 // Delegate calls from WebCore::MediaPlayerPrivate to Chrome's video player.
 // It contains PipelineImpl which is the actual media player pipeline, it glues
 // the media player pipeline, data source, audio renderer and renderer.
 // PipelineImpl would creates multiple threads and access some public methods
 // of this class, so we need to be extra careful about concurrent access of
 // methods and members.
@@ skipping 168 matching lines @@
   virtual WebKit::WebVideoFrame* getCurrentFrame();
   virtual void putCurrentFrame(WebKit::WebVideoFrame* web_video_frame);
 
   virtual bool sourceAppend(const unsigned char* data, unsigned length);
   virtual void sourceEndOfStream(EndOfStreamStatus status);
 
   // As we are closing the tab or even the browser, |main_loop_| is destroyed
   // even before this object gets destructed, so we need to know when
   // |main_loop_| is being destroyed and we can stop posting repaint task
   // to it.
-  virtual void WillDestroyCurrentMessageLoop();
+  virtual void WillDestroyCurrentMessageLoop() OVERRIDE;
 
   void Repaint();
 
   void OnPipelineInitialize(media::PipelineStatus status);
   void OnPipelineSeek(media::PipelineStatus status);
   void OnPipelineEnded(media::PipelineStatus status);
   void OnPipelineError(media::PipelineStatus error);
   void OnNetworkEvent(bool is_downloading_data);
   void OnDemuxerOpened();
 
@@ skipping 70 matching lines @@
   bool is_accelerated_compositing_active_;
 
   bool incremented_externally_allocated_memory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMediaPlayerImpl);
 };
 
 }  // namespace webkit_glue
 
 #endif  // WEBKIT_GLUE_WEBMEDIAPLAYER_IMPL_H_