Add OVERRIDE to chrome/renderer.

chrome/renderer/searchbox.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_RENDERER_SEARCHBOX_H_
 #define CHROME_RENDERER_SEARCHBOX_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 15 matching lines @@
                       InstantCompleteBehavior behavior);
 
   const string16& value() const { return value_; }
   bool verbatim() const { return verbatim_; }
   uint32 selection_start() const { return selection_start_; }
   uint32 selection_end() const { return selection_end_; }
   gfx::Rect GetRect();
 
  private:
   // RenderViewObserver implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message);
+  virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   void OnChange(const string16& value,
                 bool verbatim,
                 int selection_start,
                 int selection_end);
   void OnSubmit(const string16& value, bool verbatim);
   void OnCancel();
   void OnResize(const gfx::Rect& bounds);
   void OnDetermineIfPageSupportsInstant(const string16& value,
                                         bool verbatim,
                                         int selection_start,
                                         int selection_end);
 
   // Sets the searchbox values to their initial value.
   void Reset();
 
   string16 value_;
   bool verbatim_;
   uint32 selection_start_;
   uint32 selection_end_;
   gfx::Rect rect_;
 
   DISALLOW_COPY_AND_ASSIGN(SearchBox);
 };
 
 #endif  // CHROME_RENDERER_SEARCHBOX_H_