Added UserPolicySigninService::FetchPolicyForSignedInUser().

chrome/browser/policy/cloud_policy_service.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_POLICY_SERVICE_H_
 #define CHROME_BROWSER_POLICY_CLOUD_POLICY_SERVICE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/observer_list.h"
 #include "chrome/browser/policy/cloud_policy_client.h"
 #include "chrome/browser/policy/cloud_policy_constants.h"
 #include "chrome/browser/policy/cloud_policy_store.h"
 
 namespace policy {
 
 // Coordinates cloud policy handling, moving downloaded policy from the client
 // to the store, and setting up client registrations from cached data in the
 // store. Also coordinates actions on policy refresh triggers.
 class CloudPolicyService : public CloudPolicyClient::Observer,
                            public CloudPolicyStore::Observer {
  public:
+  // Callback invoked once the policy refresh attempt has completed. Passed
+  // bool parameter is true if the refresh was successful (no error).
+  typedef base::Callback<void(bool)> RefreshPolicyCallback;
+
   class Observer {
    public:
     // Invoked when CloudPolicyService has finished initializing (any initial
     // policy load activity has completed and the CloudPolicyClient has
     // been registered, if possible).
     virtual void OnInitializationCompleted(CloudPolicyService* service) = 0;
     virtual ~Observer() {}
   };
 
   // |client| and |store| must remain valid for the object life time.
   CloudPolicyService(CloudPolicyClient* client, CloudPolicyStore* store);
   virtual ~CloudPolicyService();
 
   // Returns the domain that manages this user/device, according to the current
   // policy blob. Empty if not managed/not available.
   std::string ManagedBy() const;
 
   // Refreshes policy. |callback| will be invoked after the operation completes
   // or aborts because of errors.
-  void RefreshPolicy(const base::Closure& callback);
+  void RefreshPolicy(const RefreshPolicyCallback& callback);
 
   // Adds/Removes an Observer for this object.
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
   // CloudPolicyClient::Observer:
   virtual void OnPolicyFetched(CloudPolicyClient* client) OVERRIDE;
   virtual void OnRegistrationStateChanged(CloudPolicyClient* client) OVERRIDE;
   virtual void OnClientError(CloudPolicyClient* client) OVERRIDE;
 
   // CloudPolicyStore::Observer:
   virtual void OnStoreLoaded(CloudPolicyStore* store) OVERRIDE;
   virtual void OnStoreError(CloudPolicyStore* store) OVERRIDE;
 
   bool IsInitializationComplete() const { return initialization_complete_; }
 
  private:
   // Helper function that is called when initialization may be complete, and
   // which is responsible for notifying observers.
   void CheckInitializationCompleted();
 
-  // Invokes the refresh callbacks and clears refresh state.
-  void RefreshCompleted();
+  // Invokes the refresh callbacks and clears refresh state. The |success| flag
+  // is passed through to the refresh callbacks.
+  void RefreshCompleted(bool success);
 
   // The client used to talk to the cloud.
   CloudPolicyClient* client_;
 
   // Takes care of persisting and decoding cloud policy.
   CloudPolicyStore* store_;
 
   // Tracks the state of a pending refresh operation, if any.
   enum {
     // No refresh pending.
     REFRESH_NONE,
     // Policy fetch is pending.
     REFRESH_POLICY_FETCH,
     // Policy store is pending.
     REFRESH_POLICY_STORE,
   } refresh_state_;
 
   // Callbacks to invoke upon policy refresh.
-  std::vector<base::Closure> refresh_callbacks_;
+  std::vector<RefreshPolicyCallback> refresh_callbacks_;
 
   // Set to true once the service is initialized (initial policy load/refresh
   // is complete).
   bool initialization_complete_;
 
   // Observers who will receive notifications when the service has finished
   // initializing.
   ObserverList<Observer, true> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(CloudPolicyService);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_CLOUD_POLICY_SERVICE_H_