Add shutdown notification and service refs to SyncServiceObserver.

chrome/browser/ui/webui/options/browser_options_handler.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_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 65 matching lines @@
 
   // OptionsPageUIHandler implementation.
   void GetLocalizedValues(base::DictionaryValue* values) override;
   void PageLoadStarted() override;
   void InitializeHandler() override;
   void InitializePage() override;
   void RegisterMessages() override;
   void Uninitialize() override;
 
   // syncer::SyncServiceObserver implementation.
-  void OnStateChanged() override;
+  void OnStateChanged(syncer::SyncService* sync) override;
 
   // SigninManagerBase::Observer implementation.
   void GoogleSigninSucceeded(const std::string& account_id,
                              const std::string& username,
                              const std::string& password) override;
   void GoogleSignedOut(const std::string& account_id,
                        const std::string& username) override;
 
   // TemplateURLServiceObserver implementation.
   void OnTemplateURLServiceChanged() override;
@@ skipping 349 matching lines @@
 
   // Used to get WeakPtr to self for use on the UI thread.
   base::WeakPtrFactory<BrowserOptionsHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserOptionsHandler);
 };
 
 }  // namespace options
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_