Add OVERRIDE to chrome/service/.

chrome/service/cloud_print/cloud_print_proxy.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_SERVICE_CLOUD_PRINT_CLOUD_PRINT_PROXY_H_
 #define CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_PROXY_H_
 #pragma once
 
 #include <string>
 
@@ skipping 36 matching lines @@
   // Returns the proxy info.
   void GetProxyInfo(cloud_print::CloudPrintProxyInfo* info);
 
   const std::string& user_email() const {
     return user_email_;
   }
 
   // CloudPrintProxyFrontend implementation. Called on UI thread.
   virtual void OnAuthenticated(const std::string& robot_oauth_refresh_token,
                                const std::string& robot_email,
-                               const std::string& user_email);
-  virtual void OnAuthenticationFailed();
-  virtual void OnPrintSystemUnavailable();
+                               const std::string& user_email) OVERRIDE;
+  virtual void OnAuthenticationFailed() OVERRIDE;
+  virtual void OnPrintSystemUnavailable() OVERRIDE;
 
  protected:
   void Shutdown();
   bool CreateBackend();
 
   // Our asynchronous backend to communicate with sync components living on
   // other threads.
   scoped_ptr<CloudPrintProxyBackend> backend_;
   // This class does not own this. It is guaranteed to remain valid for the
   // lifetime of this class.
   ServiceProcessPrefs* service_prefs_;
   // This class does not own this. If non-NULL, It is guaranteed to remain
   // valid for the lifetime of this class.
   Client* client_;
   // The email address of the account used to authenticate to the Cloud Print
   // service.
   std::string user_email_;
   // This is set to true when the Cloud Print proxy is enabled and after
   // successful authentication with the Cloud Print service.
   bool enabled_;
   // This is initialized after a successful call to one of the Enable* methods.
   // It is not cleared in DisableUser.
   std::string proxy_id_;
 
   DISALLOW_COPY_AND_ASSIGN(CloudPrintProxy);
 };
 
 #endif  // CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_PROXY_H_