Remove #pragma once from chrome/browser/policy

chrome/browser/policy/managed_mode_policy_provider.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_MANAGED_MODE_POLICY_PROVIDER_H_
 #define CHROME_BROWSER_POLICY_MANAGED_MODE_POLICY_PROVIDER_H_
-#pragma once
 
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/policy/configuration_policy_provider.h"
 #include "chrome/browser/profiles/profile_keyed_service.h"
 #include "chrome/common/persistent_pref_store.h"
 
 class Profile;
 
 namespace policy {
 
@@ skipping 36 matching lines @@
   void UpdatePolicyFromCache();
 
   // Used for persisting policies. Unlike other PrefStores, this one is not
   // hooked up to the PrefService.
   scoped_refptr<PersistentPrefStore> store_;
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_MANAGED_MODE_POLICY_PROVIDER_H_