Remove #pragma once from chrome/browser/policy

chrome/browser/policy/mock_cloud_policy_store.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_MOCK_CLOUD_POLICY_STORE_H_
 #define CHROME_BROWSER_POLICY_MOCK_CLOUD_POLICY_STORE_H_
-#pragma once
 
 #include "chrome/browser/policy/cloud_policy_store.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace policy {
 
 class MockCloudPolicyStore : public CloudPolicyStore {
  public:
   MockCloudPolicyStore();
   virtual ~MockCloudPolicyStore();
 
   MOCK_METHOD1(Store, void(const enterprise_management::PolicyFetchResponse&));
   MOCK_METHOD0(Load, void(void));
 
   // Publish the protected members.
   using CloudPolicyStore::NotifyStoreLoaded;
   using CloudPolicyStore::NotifyStoreError;
 
   using CloudPolicyStore::policy_map_;
   using CloudPolicyStore::policy_;
   using CloudPolicyStore::status_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockCloudPolicyStore);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_MOCK_CLOUD_POLICY_STORE_H_