Add OVERRIDE to chrome/test/.

chrome/test/ui/ui_test_suite.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_TEST_UI_UI_TEST_SUITE_H_
 #define CHROME_TEST_UI_UI_TEST_SUITE_H_
 #pragma once
 
 #include "base/process.h"
 #include "chrome/test/base/chrome_test_suite.h"
 
 #if defined(OS_WIN)
 #include "base/win/scoped_handle.h"
 #endif
 
 class UITestSuite : public ChromeTestSuite {
  public:
   UITestSuite(int argc, char** argv);
 
  protected:
-  virtual void Initialize();
-  virtual void Shutdown();
+  virtual void Initialize() OVERRIDE;
+  virtual void Shutdown() OVERRIDE;
 
  private:
 #if defined(OS_WIN)
   void LoadCrashService();
 
   base::ProcessHandle crash_service_;
 
   // JobObject used to clean up orphaned child processes.
   base::win::ScopedHandle job_handle_;
 #endif
 };
 
 #endif  // CHROME_TEST_UI_UI_TEST_SUITE_H_