[Sync] Trigger refresh for synced notifications on context change

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

 // 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.
 
 #include "chrome/browser/extensions/api/synced_notifications_private/synced_notifications_shim.h"
 
 #include "extensions/browser/event_router.h"
 #include "sync/api/sync_change.h"
 #include "sync/api/sync_data.h"
 #include "sync/api/sync_error_factory.h"
@@ skipping 111 matching lines @@
       return false;
     }
     js_data_list->push_back(js_data);
   }
   return true;
 }
 
 }  // namespace
 
 SyncedNotificationsShim::SyncedNotificationsShim(
-    const EventLauncher& event_launcher)
-    : event_launcher_(event_launcher) {
+    const EventLauncher& event_launcher,
+    const base::Closure& refresh_request)
+    : event_launcher_(event_launcher),
+      refresh_request_(refresh_request) {
 }
 
 SyncedNotificationsShim::~SyncedNotificationsShim() {
 }
 
 syncer::SyncMergeResult SyncedNotificationsShim::MergeDataAndStartSyncing(
     syncer::ModelType type,
     const syncer::SyncDataList& initial_sync_data,
     scoped_ptr<syncer::SyncChangeProcessor> sync_processor,
     scoped_ptr<syncer::SyncErrorFactory> error_handler) {
@@ skipping 89 matching lines @@
     return false;
 
   syncer::SyncChangeProcessor::ContextRefreshStatus sync_refresh_status =
       refresh_request ==
               synced_notifications_private::REFRESH_REQUEST_REFRESH_NEEDED
           ? syncer::SyncChangeProcessor::REFRESH_NEEDED
           : syncer::SyncChangeProcessor::NO_REFRESH;
   syncer::SyncError error =
       notifications_change_processor_->UpdateDataTypeContext(
           syncer::SYNCED_NOTIFICATIONS, sync_refresh_status, new_context);
+
+  if (sync_refresh_status == syncer::SyncChangeProcessor::REFRESH_NEEDED &&
+      !refresh_request_.is_null()) {
+    refresh_request_.Run();
+  }
+
   return !error.IsSet();
 }
 
 bool SyncedNotificationsShim::IsSyncReady() const {
   return notifications_change_processor_ && app_info_change_processor_;
 }