Replacing the OVERRIDE with override in chrome/renderer

chrome/renderer/prerender/prerender_media_load_deferrer.h

 // Copyright 2013 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_RENDERER_PRERENDER_PRERENDER_MEDIA_LOAD_DEFERRER_H_
 #define CHROME_RENDERER_PRERENDER_PRERENDER_MEDIA_LOAD_DEFERRER_H_
 
 #include "base/callback.h"
 #include "content/public/renderer/render_frame_observer.h"
 
 namespace prerender {
 
 // Defers media player loading in prerendered pages until the prerendered page
 // is swapped in.
 class PrerenderMediaLoadDeferrer : public content::RenderFrameObserver {
  public:
   // Will run |closure| to continue loading the media resource once the page is
   // swapped in.
   PrerenderMediaLoadDeferrer(content::RenderFrame* render_frame,
                              const base::Closure& closure);
   virtual ~PrerenderMediaLoadDeferrer();
 
  private:
   // RenderFrameObserver method:
-  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
+  virtual bool OnMessageReceived(const IPC::Message& message) override;
 
   void OnSetIsPrerendering(bool is_prerendering);
 
   bool is_prerendering_;
   base::Closure continue_loading_cb_;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderMediaLoadDeferrer);
 };
 
 }  // namespace prerender
 
 #endif  // CHROME_RENDERER_PRERENDER_PRERENDER_MEDIA_LOAD_DEFERRER_H_