Remove #pragma once from chrome/browser/policy

chrome/browser/policy/policy_notifier.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_POLICY_POLICY_NOTIFIER_H_
 #define CHROME_BROWSER_POLICY_POLICY_NOTIFIER_H_
-#pragma once
 
 #include "base/observer_list.h"
 #include "chrome/browser/policy/cloud_policy_subsystem.h"
 
 namespace policy {
 
 // Keeps track of the state of the policy subsystem components as far as it's
 // relevant to the outside world. Is informed by components about status
 // changes (failures and successes), determines the overall state and
 // communicates it.
@@ skipping 42 matching lines @@
   ErrorDetails component_error_details_[NUM_SOURCES];
 
   ObserverList<CloudPolicySubsystem::Observer, true> observer_list_;
 
   DISALLOW_COPY_AND_ASSIGN(PolicyNotifier);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_POLICY_NOTIFIER_H_