Remove #pragma once from chrome/service

chrome/service/cloud_print/cloud_print_auth.h

 // Copyright (c) 2012 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_AUTH_H_
 #define CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_AUTH_H_
-#pragma once
 
 #include <string>
 
 #include "base/values.h"
 #include "chrome/common/net/gaia/gaia_oauth_client.h"
 #include "chrome/service/cloud_print/cloud_print_url_fetcher.h"
 #include "googleurl/src/gurl.h"
 
 // CloudPrintAuth is a class to handle login, token refresh, and other
 // authentication tasks for Cloud Print.
@@ skipping 89 matching lines @@
   std::string robot_email_;
   // client login token used to authenticate request to cloud print server to
   // get the robot account.
   std::string client_login_token_;
 
   DISALLOW_COPY_AND_ASSIGN(CloudPrintAuth);
 };
 
 #endif  // CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_AUTH_H_