arc: Use v2/auth LSO page.

chrome/chrome_browser_extensions.gypi

 # 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.
 
 {
   'variables': {
     'chrome_browser_extensions_chromeos_sources': [
       'browser/extensions/api/cast_devices_private/cast_devices_private_api.cc',
       'browser/extensions/api/cast_devices_private/cast_devices_private_api.h',
       'browser/extensions/api/certificate_provider/certificate_provider_api.cc',
@@ skipping 15 matching lines @@
       'browser/extensions/api/input_ime/input_ime_event_router_base.cc',
       'browser/extensions/api/input_ime/input_ime_event_router_base.h',
       'browser/extensions/api/log_private/filter_handler.cc',
       'browser/extensions/api/log_private/filter_handler.h',
       'browser/extensions/api/log_private/log_parser.cc',
       'browser/extensions/api/log_private/log_parser.h',
       'browser/extensions/api/log_private/log_private_api.h',
       'browser/extensions/api/log_private/log_private_api_chromeos.cc',
       'browser/extensions/api/log_private/syslog_parser.cc',
       'browser/extensions/api/log_private/syslog_parser.h',
-      'browser/extensions/api/messaging/arc_support_host.cc',
-      'browser/extensions/api/messaging/arc_support_host.h',
       'browser/extensions/api/messaging/native_message_host_chromeos.cc',
       'browser/extensions/api/networking_private/crypto_verify_impl.cc',
       'browser/extensions/api/networking_private/crypto_verify_impl.h',
       'browser/extensions/api/platform_keys/platform_keys_api.cc',
       'browser/extensions/api/platform_keys/platform_keys_api.h',
       'browser/extensions/api/platform_keys/verify_trust_api.cc',
       'browser/extensions/api/platform_keys/verify_trust_api.h',
       'browser/extensions/api/terminal/terminal_extension_helper.cc',
       'browser/extensions/api/terminal/terminal_extension_helper.h',
       'browser/extensions/api/terminal/terminal_private_api.cc',
@@ skipping 1104 matching lines @@
           ],
         }, {  # use_brlapi==0
           'sources': [
             'browser/extensions/api/braille_display_private/braille_controller_stub.cc',
           ],
         }],
       ],
     },
   ],
 }