replace OVERRIDE and FINAL with override and final in extensions/

extensions/renderer/extensions_render_frame_observer.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 EXTENSIONS_RENDERER_EXTENSIONS_RENDER_FRAME_OBSERVER_H_
 #define EXTENSIONS_RENDERER_EXTENSIONS_RENDER_FRAME_OBSERVER_H_
 
 #include "base/basictypes.h"
 #include "content/public/renderer/render_frame_observer.h"
 
 namespace extensions {
 
 // This class holds the extensions specific parts of RenderFrame, and has the
 // same lifetime.
 class ExtensionsRenderFrameObserver
     : public content::RenderFrameObserver {
  public:
   explicit ExtensionsRenderFrameObserver(
       content::RenderFrame* render_frame);
   virtual ~ExtensionsRenderFrameObserver();
 
  private:
   // RenderFrameObserver implementation.
   virtual void DetailedConsoleMessageAdded(const base::string16& message,
                                            const base::string16& source,
                                            const base::string16& stack_trace,
                                            int32 line_number,
-                                           int32 severity_level) OVERRIDE;
-  virtual void DidChangeName(const base::string16& name) OVERRIDE;
+                                           int32 severity_level) override;
+  virtual void DidChangeName(const base::string16& name) override;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionsRenderFrameObserver);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_EXTENSIONS_RENDER_FRAME_OBSERVER_H_