[Sync] Trigger refresh for synced notifications on context change

chrome/browser/extensions/api/synced_notifications_private/synced_notifications_shim.h

 // Copyright 2014 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_EXTENSIONS_API_SYNCED_NOTIFICATIONS_PRIVATE_SYNCED_NOTIFICATIONS_SHIM_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SYNCED_NOTIFICATIONS_PRIVATE_SYNCED_NOTIFICATIONS_SHIM_H_
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/common/extensions/api/synced_notifications_private.h"
 #include "sync/api/syncable_service.h"
 
 namespace extensions {
 struct Event;
 }
 
 // Shim for SYNCED_NOTIFICATIONS and SYNCED_NOTIFICATIONS_APP_INFO datatypes
 // to interface with their extension backed sync code.
 class SyncedNotificationsShim : public syncer::SyncableService {
  public:
   // Callback for firing extension events.
   typedef base::Callback<void(scoped_ptr<extensions::Event>)> EventLauncher;
 
-  explicit SyncedNotificationsShim(const EventLauncher& event_launcher);
+  explicit SyncedNotificationsShim(const EventLauncher& event_launcher,
+                                   const base::Closure& refresh_request);
   virtual ~SyncedNotificationsShim();
 
   // SyncableService interface.
   virtual syncer::SyncMergeResult MergeDataAndStartSyncing(
       syncer::ModelType type,
       const syncer::SyncDataList& initial_sync_data,
       scoped_ptr<syncer::SyncChangeProcessor> sync_processor,
       scoped_ptr<syncer::SyncErrorFactory> error_handler) OVERRIDE;
   virtual void StopSyncing(syncer::ModelType type) OVERRIDE;
   virtual syncer::SyncError ProcessSyncChanges(
@@ skipping 14 matching lines @@
           refresh_status,
       const std::string& new_context);
 
   // Returns whether both sync notification datatypes are up and running.
   bool IsSyncReady() const;
 
  private:
   // Callback to trigger firing extension events.
   EventLauncher event_launcher_;
 
+  // Callback to trigger synced notification refresh.
+  base::Closure refresh_request_;
+
   // The sync change processors, initialized via MergeDataAndStartSyncing.
   scoped_ptr<syncer::SyncChangeProcessor> notifications_change_processor_;
   scoped_ptr<syncer::SyncChangeProcessor> app_info_change_processor_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncedNotificationsShim);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SYNCED_NOTIFICATIONS_PRIVATE_SYNCED_NOTIFICATIONS_SHIM_H_