Added RefreshPolicies to PolicyService.

chrome/browser/ui/webui/policy_ui.h

Index: chrome/browser/ui/webui/policy_ui.h
diff --git a/chrome/browser/ui/webui/policy_ui.h b/chrome/browser/ui/webui/policy_ui.h
index 34e58877023b99bcb1db3efbc1a29473c1cf05a0..38192d50d865741a323636122dd85ea02708a22e 100644
--- a/chrome/browser/ui/webui/policy_ui.h
+++ b/chrome/browser/ui/webui/policy_ui.h
@@ -7,6 +7,7 @@
 #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"
@@ -38,10 +39,11 @@ class PolicyUIHandler : public content::WebUIMessageHandler,
   // 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
@@ -66,6 +68,9 @@ class PolicyUIHandler : public content::WebUIMessageHandler,
 
   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);
 };