Implemented new UI for error messages on OOBE/Login.

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h

 // Copyright (c) 2013 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_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_
 
 #include <set>
 #include <string>
 
@@ skipping 268 matching lines @@
   // WebUI message handlers.
   void HandleCompleteLogin(const base::ListValue* args);
   void HandleGetUsers(const base::ListValue* args);
   void HandleAuthenticateUser(const base::ListValue* args);
   void HandleLaunchDemoUser(const base::ListValue* args);
   void HandleLaunchIncognito(const base::ListValue* args);
   void HandleLaunchPublicAccount(const base::ListValue* args);
   void HandleOfflineLogin(const base::ListValue* args);
   void HandleShutdownSystem(const base::ListValue* args);
   void HandleLoadWallpaper(const base::ListValue* args);
+  void HandleRebootSystem(const base::ListValue* args);
   void HandleRemoveUser(const base::ListValue* args);
   void HandleShowAddUser(const base::ListValue* args);
   void HandleToggleEnrollmentScreen(const base::ListValue* args);
   void HandleToggleResetScreen(const base::ListValue* args);
   void HandleLaunchHelpApp(const base::ListValue* args);
   void HandleCreateAccount(const base::ListValue* args);
   void HandleAccountPickerReady(const base::ListValue* args);
   void HandleWallpaperReady(const base::ListValue* args);
   void HandleLoginWebuiReady(const base::ListValue* args);
   void HandleDemoWebuiReady(const base::ListValue* args);
@@ skipping 136 matching lines @@
   // NOTIFICATION_AUTH_NEEDED and reset on either NOTIFICATION_AUTH_SUPPLIED or
   // NOTIFICATION_AUTH_CANCELLED.
   bool has_pending_auth_ui_;
 
   DISALLOW_COPY_AND_ASSIGN(SigninScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_