Remove unused UserSettingsChanged and UpdateGaia.

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

 // Copyright 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_GAIA_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_GAIA_SCREEN_HANDLER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 60 matching lines @@
       CoreOobeActor* core_oobe_actor,
       const scoped_refptr<NetworkStateInformer>& network_state_informer,
       policy::ConsumerManagementService* consumer_management);
   ~GaiaScreenHandler() override;
 
   void LoadGaia(const GaiaContext& context);
 
   // Callback that loads GAIA after version information has been retrieved.
   void LoadGaiaWithVersion(const GaiaContext& context,
                            const std::string& platform_version);
-  void UpdateGaia(const GaiaContext& context);
 
   // Sends request to reload Gaia. If |force_reload| is true, request
   // will be sent in any case, otherwise it will be sent only when Gaia is
   // not loading right now.
   void ReloadGaia(bool force_reload);
 
   // Turns offline idle detection on or off. Idle detection should only be on if
   // we're using the offline login page but the device is online.
   void MonitorOfflineIdle(bool is_online);
 
@@ skipping 181 matching lines @@
   scoped_ptr<ScopedGaiaAuthExtension> auth_extension_;
 
   base::WeakPtrFactory<GaiaScreenHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GaiaScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_GAIA_SCREEN_HANDLER_H_