Allow signin to continue even if sync is disabled by policy.

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.
 {
   'targets': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 1019 matching lines @@
         'browser/search_engines/template_url_service_unittest.cc',
         'browser/search_engines/template_url_parser_unittest.cc',
         'browser/search_engines/template_url_prepopulate_data_unittest.cc',
         'browser/search_engines/template_url_scraper_unittest.cc',
         'browser/search_engines/template_url_unittest.cc',
         'browser/sessions/session_backend_unittest.cc',
         'browser/sessions/session_service_unittest.cc',
         'browser/sessions/session_types_unittest.cc',
         'browser/shell_integration_unittest.cc',
         'browser/shell_integration_win_unittest.cc',
+        'browser/signin/fake_auth_status_provider.cc',
+        'browser/signin/fake_auth_status_provider.h',
         'browser/signin/oauth2_token_service_request_unittest.cc',
         'browser/signin/oauth2_token_service_unittest.cc',
         'browser/signin/signin_global_error_unittest.cc',
         'browser/signin/signin_manager_fake.cc',
         'browser/signin/signin_manager_fake.h',
         'browser/signin/signin_manager_unittest.cc',
         'browser/signin/signin_names_io_thread_unittest.cc',
         'browser/signin/signin_tracker_unittest.cc',
         'browser/signin/token_service_unittest.cc',
         'browser/signin/token_service_unittest.h',
@@ skipping 1315 matching lines @@
               # more details.
               'DebugInformationFormat': '3',
               'ProgramDataBaseFileName': '<(PRODUCT_DIR)/unit_tests.exe.pdb',
             },
           },
         },
       ],
     }],
   ],  # 'conditions'
 }