ScreenContext is moved to components/login.

chrome/chrome_browser_ui.gypi

 # Copyright 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.
 
 {
   'variables': {
     'chrome_browser_ui_non_ios_sources': [
       'browser/ui/accelerator_utils.h',
       'browser/ui/android/android_about_app_info.cc',
       'browser/ui/android/android_about_app_info.h',
@@ skipping 922 matching lines @@
       'browser/ui/webui/chromeos/keyboard_overlay_ui.cc',
       'browser/ui/webui/chromeos/keyboard_overlay_ui.h',
       'browser/ui/webui/chromeos/login/app_launch_splash_screen_handler.cc',
       'browser/ui/webui/chromeos/login/app_launch_splash_screen_handler.h',
       'browser/ui/webui/chromeos/login/authenticated_user_email_retriever.cc',
       'browser/ui/webui/chromeos/login/authenticated_user_email_retriever.h',
       'browser/ui/webui/chromeos/login/auto_enrollment_check_screen_handler.cc',
       'browser/ui/webui/chromeos/login/auto_enrollment_check_screen_handler.h',
       'browser/ui/webui/chromeos/login/base_screen_handler.cc',
       'browser/ui/webui/chromeos/login/base_screen_handler.h',
-      'browser/ui/webui/chromeos/login/base_screen_handler_utils.cc',
-      'browser/ui/webui/chromeos/login/base_screen_handler_utils.h',
       'browser/ui/webui/chromeos/login/controller_pairing_screen_handler.cc',
       'browser/ui/webui/chromeos/login/controller_pairing_screen_handler.h',
       'browser/ui/webui/chromeos/login/core_oobe_handler.cc',
       'browser/ui/webui/chromeos/login/core_oobe_handler.h',
       'browser/ui/webui/chromeos/login/demo_mode_detector.cc',
       'browser/ui/webui/chromeos/login/demo_mode_detector.h',
       'browser/ui/webui/chromeos/login/device_disabled_screen_handler.cc',
       'browser/ui/webui/chromeos/login/device_disabled_screen_handler.h',
       'browser/ui/webui/chromeos/login/enrollment_screen_handler.cc',
       'browser/ui/webui/chromeos/login/enrollment_screen_handler.h',
@@ skipping 2075 matching lines @@
         }],
         ['OS!="android" and OS!="ios"', {
           'dependencies': [
             '../device/bluetooth/bluetooth.gyp:device_bluetooth',
           ],
         }],
       ],
     },
   ],
 }