Cleanup and style guideline conformance for policy implementation

chrome/browser/policy/dummy_configuration_policy_provider.h

 // Copyright (c) 2010 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_DUMMY_CONFIGURATION_POLICY_PROVIDER_H_
 #define CHROME_BROWSER_POLICY_DUMMY_CONFIGURATION_POLICY_PROVIDER_H_
 #pragma once
 
-#include "chrome/browser/policy/configuration_policy_store.h"
+#include "chrome/browser/policy/configuration_policy_store_interface.h"
 #include "chrome/browser/policy/configuration_policy_provider.h"
 
 namespace policy {
 
 class DummyConfigurationPolicyProvider : public ConfigurationPolicyProvider {
  public:
   explicit DummyConfigurationPolicyProvider(
       const PolicyDefinitionList* policy_list)
       : ConfigurationPolicyProvider(policy_list) {
   }
   virtual ~DummyConfigurationPolicyProvider() {}
 
-  virtual bool Provide(ConfigurationPolicyStore* store) {
+  virtual bool Provide(ConfigurationPolicyStoreInterface* store) {
     return true;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DummyConfigurationPolicyProvider);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_DUMMY_CONFIGURATION_POLICY_PROVIDER_H_