Remove #pragma once from chrome/service

chrome/service/cloud_print/cloud_print_proxy.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_PROXY_H_
 #define CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_PROXY_H_
-#pragma once
 
 #include <list>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "chrome/service/cloud_print/cloud_print_proxy_backend.h"
 #include "chrome/service/cloud_print/cloud_print_wipeout.h"
 
@@ skipping 77 matching lines @@
   std::string proxy_id_;
   // Cloud Print server url.
   GURL cloud_print_server_url_;
   // This is a cleanup class for unregistering printers on proxy disable.
   scoped_ptr<CloudPrintWipeout> wipeout_;
 
   DISALLOW_COPY_AND_ASSIGN(CloudPrintProxy);
 };
 
 #endif  // CHROME_SERVICE_CLOUD_PRINT_CLOUD_PRINT_PROXY_H_