Fixed crash in CloudPolicyManager.

chrome/browser/policy/cloud/cloud_policy_manager.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_CLOUD_CLOUD_POLICY_MANAGER_H_
 #define CHROME_BROWSER_POLICY_CLOUD_CLOUD_POLICY_MANAGER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 59 matching lines @@
 
  protected:
   // Check whether fully initialized and if so, publish policy by calling
   // ConfigurationPolicyStore::UpdatePolicy().
   void CheckAndPublishPolicy();
 
   void CreateComponentCloudPolicyService(
       const base::FilePath& policy_cache_path,
       const scoped_refptr<net::URLRequestContextGetter>& request_context);
 
+  void ClearAndDestroyComponentCloudPolicyService();
+
   // Convenience accessors to core() components.
   CloudPolicyClient* client() { return core_.client(); }
   const CloudPolicyClient* client() const { return core_.client(); }
   CloudPolicyStore* store() { return core_.store(); }
   const CloudPolicyStore* store() const { return core_.store(); }
   CloudPolicyService* service() { return core_.service(); }
   const CloudPolicyService* service() const { return core_.service(); }
   ComponentCloudPolicyService* component_policy_service() const {
     return component_policy_service_.get();
   }
@@ skipping 11 matching lines @@
 
   scoped_refptr<base::SequencedTaskRunner> file_task_runner_;
   scoped_refptr<base::SequencedTaskRunner> io_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(CloudPolicyManager);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_CLOUD_CLOUD_POLICY_MANAGER_H_