Add OVERRIDE to chrome/browser/extensions/.

chrome/browser/extensions/extension_service_unittest.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_BROWSER_EXTENSIONS_EXTENSION_SERVICE_UNITTEST_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_UNITTEST_H_
 #pragma once
 
 #include "base/at_exit.h"
 #include "base/file_path.h"
@@ skipping 22 matching lines @@
   void InitializeEmptyExtensionService();
 
   void InitializeExtensionProcessManager();
 
   void InitializeExtensionServiceWithUpdater();
 
   void InitializeRequestContext();
 
   static void SetUpTestCase();
 
-  virtual void SetUp();
+  virtual void SetUp() OVERRIDE;
 
   void set_extensions_enabled(bool enabled) {
     service_->set_extensions_enabled(enabled);
   }
 
  protected:
   void InitializeExtensionServiceHelper(bool autoupdate_enabled);
 
   MessageLoop loop_;
   base::ShadowingAtExitManager at_exit_manager_;
   ScopedTempDir temp_dir_;
   scoped_ptr<TestingProfile> profile_;
   FilePath extensions_install_dir_;
   FilePath data_dir_;
   // Owned by |profile_|.
   ExtensionService* service_;
   size_t total_successes_;
   content::TestBrowserThread ui_thread_;
   content::TestBrowserThread db_thread_;
   content::TestBrowserThread webkit_thread_;
   content::TestBrowserThread file_thread_;
   content::TestBrowserThread io_thread_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_UNITTEST_H_