Added RefreshPolicies to PolicyService.

chrome/browser/ui/webui/policy_ui.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_UI_WEBUI_POLICY_UI_H_
 #define CHROME_BROWSER_UI_WEBUI_POLICY_UI_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
 #include "base/values.h"
 #include "chrome/browser/policy/cloud_policy_subsystem.h"
 #include "chrome/browser/policy/configuration_policy_reader.h"
 #include "content/public/browser/web_ui_controller.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 namespace policy {
 class CloudPolicyDataStore;
 }
 
@@ skipping 11 matching lines @@
   virtual void OnPolicyValuesChanged() OVERRIDE;
 
  private:
 
   // Callback for the "requestData" message. The parameter |args| is unused.
   void HandleRequestData(const ListValue* args);
 
   // Callback for the "fetchPolicy" message. The parameter |args| is unused.
   void HandleFetchPolicy(const ListValue* args);
 
-  // Send requested data to UI. |is_policy_update| should be set to true when
-  // policy data is pushed to the UI without having been requested by a
-  // javascript message and to false otherwise.
-  void SendDataToUI(bool is_policy_update);
+  // Callback for completion of a RefreshPolicies call.
+  void OnRefreshDone();
+
+  // Sends policy data to UI.
+  void SendDataToUI();
 
   // Returns a DictionaryValue pointer containing information about the status
   // of the policy system. The caller acquires ownership of the returned
   // DictionaryValue pointer.
   DictionaryValue* GetStatusData();
 
   // Returns the time at which policy was last fetched by the
   // CloudPolicySubsystem |subsystem| in string form.
   string16 GetLastFetchTime(policy::CloudPolicySubsystem* subsystem);
 
   // Reads the device id from |data_store| and returns it as a string16.
   string16 GetDeviceId(const policy::CloudPolicyDataStore* data_store);
 
   // Reads the policy fetch interval from the preferences specified by
   // |refresh_pref| and returns it as a string16.
   string16 GetPolicyFetchInterval(const char* refresh_pref);
 
   // Returns the string corresponding to the CloudPolicySubsystem::ErrorDetails
   // enum value |error_details|.
   static string16 CreateStatusMessageString(
       policy::CloudPolicySubsystem::ErrorDetails error_details);
 
   scoped_ptr<policy::PolicyStatus> policy_status_;
 
+  // Used to post a callback to RefreshPolicies with a WeakPtr to |this|.
+  base::WeakPtrFactory<PolicyUIHandler> weak_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(PolicyUIHandler);
 };
 
 // The Web UI handler for about:policy.
 class PolicyUI : public content::WebUIController {
  public:
   explicit PolicyUI(content::WebUI* web_ui);
   virtual ~PolicyUI();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(PolicyUI);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_POLICY_UI_H_