Cosmetic cleanups in chrome/browser/policy/

chrome/browser/policy/cloud_policy_provider_impl.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_CLOUD_POLICY_PROVIDER_IMPL_H_
 #define CHROME_BROWSER_POLICY_CLOUD_POLICY_PROVIDER_IMPL_H_
 #pragma once
 
+#include <vector>
+
 #include "base/observer_list.h"
 #include "chrome/browser/policy/cloud_policy_cache_base.h"
 #include "chrome/browser/policy/cloud_policy_provider.h"
 #include "chrome/browser/policy/policy_map.h"
 
 namespace policy {
 
 class CloudPolicyProviderImpl : public CloudPolicyProvider,
                                 public CloudPolicyCacheBase::Observer {
  public:
@@ skipping 50 matching lines @@
   // The currently valid combination of all the maps in |caches_|. Will be
   // applied as is on call of Provide.
   PolicyMap combined_;
 
   DISALLOW_COPY_AND_ASSIGN(CloudPolicyProviderImpl);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_CLOUD_POLICY_PROVIDER_IMPL_H_