Add shutdown notification and service refs to SyncServiceObserver.

chrome/browser/supervised_user/supervised_user_service.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_SUPERVISED_USER_SUPERVISED_USER_SERVICE_H_
 #define CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_SERVICE_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 197 matching lines @@
   bool IncludesSyncSessionsType() const;
 
   // ProfileKeyedService override:
   void Shutdown() override;
 
   // SyncTypePreferenceProvider implementation:
   syncer::ModelTypeSet GetPreferredDataTypes() const override;
 
 #if !defined(OS_ANDROID)
   // syncer::SyncServiceObserver implementation:
-  void OnStateChanged() override;
+  void OnStateChanged(syncer::SyncService* sync) override;
 
   // chrome::BrowserListObserver implementation:
   void OnBrowserSetLastActive(Browser* browser) override;
 #endif  // !defined(OS_ANDROID)
 
   // SupervisedUserURLFilter::Observer implementation:
   void OnSiteListUpdated() override;
 
  private:
   friend class SupervisedUserServiceExtensionTestBase;
@@ skipping 242 matching lines @@
 
   base::ObserverList<SupervisedUserServiceObserver> observer_list_;
 
   // Prevents Sync from running until configuration is complete.
   std::unique_ptr<syncer::SyncSetupInProgressHandle> sync_blocker_;
 
   base::WeakPtrFactory<SupervisedUserService> weak_ptr_factory_;
 };
 
 #endif  // CHROME_BROWSER_SUPERVISED_USER_SUPERVISED_USER_SERVICE_H_