Remove #pragma once from chrome/browser/policy

chrome/browser/policy/device_token_fetcher.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_BROWSER_POLICY_DEVICE_TOKEN_FETCHER_H_
 #define CHROME_BROWSER_POLICY_DEVICE_TOKEN_FETCHER_H_
-#pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/policy/cloud_policy_constants.h"
 
 namespace enterprise_management {
 class DeviceManagementResponse;
 }
 
 namespace policy {
@@ skipping 111 matching lines @@
   CloudPolicyDataStore* data_store_;
 
   scoped_ptr<DelayedWorkScheduler> scheduler_;
 
   DISALLOW_COPY_AND_ASSIGN(DeviceTokenFetcher);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_DEVICE_TOKEN_FETCHER_H_