Refactor AO2TS to make it easier to componentize.

chrome/chrome_tests_unit.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_unit_tests_sources': [
       # histograms.xml is analyzed by AboutFlagsHistogramTest, so this
       # dependency is needed to make commit bots run unit_tests on
       # histograms.xml changes.
       '../tools/metrics/histograms/histograms.xml',
@@ skipping 772 matching lines @@
       'browser/media/cast_transport_host_filter_unittest.cc',
       'browser/metrics/extensions_metrics_provider_unittest.cc',
       'browser/notifications/extension_welcome_notification_unittest.cc',
       'browser/notifications/notification_conversion_helper_unittest.cc',
       'browser/renderer_context_menu/context_menu_content_type_unittest.cc',
       'browser/search/hotword_service_unittest.cc',
       'browser/signin/easy_unlock_app_manager_unittest.cc',
       'browser/signin/easy_unlock_auth_attempt_unittest.cc',
       'browser/signin/easy_unlock_screenlock_state_handler_unittest.cc',
       'browser/signin/easy_unlock_service_unittest_chromeos.cc',
+      'browser/signin/mutable_profile_oauth2_token_service_delegate_unittest.cc',
       'browser/sync/glue/extensions_activity_monitor_unittest.cc',
       'browser/sync_file_system/drive_backend/callback_helper_unittest.cc',
       'browser/sync_file_system/drive_backend/callback_tracker_unittest.cc',
       'browser/sync_file_system/drive_backend/conflict_resolver_unittest.cc',
       'browser/sync_file_system/drive_backend/drive_backend_sync_unittest.cc',
       'browser/sync_file_system/drive_backend/drive_backend_test_util.cc',
       'browser/sync_file_system/drive_backend/drive_backend_test_util.h',
       'browser/sync_file_system/drive_backend/fake_drive_service_helper.cc',
       'browser/sync_file_system/drive_backend/fake_drive_service_helper.h',
       'browser/sync_file_system/drive_backend/fake_drive_uploader.cc',
@@ skipping 2061 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }