Refactor FileBasedPolicyProvider, introduce AsynchronousPolicyProvider.

chrome/chrome_tests.gypi

 # Copyright (c) 2010 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' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
@@ skipping 1238 matching lines @@
         'browser/password_manager/encryptor_password_mac_unittest.cc',
         'browser/password_manager/login_database_unittest.cc',
         'browser/password_manager/password_form_data.cc',
         'browser/password_manager/password_form_manager_unittest.cc',
         'browser/password_manager/password_manager_unittest.cc',
         'browser/password_manager/password_store_default_unittest.cc',
         'browser/password_manager/password_store_mac_unittest.cc',
         'browser/password_manager/password_store_win_unittest.cc',
         'browser/plugin_exceptions_table_model_unittest.cc',
         'browser/plugin_service_unittest.cc',
+        'browser/policy/asynchronous_policy_loader_unittest.cc',
+        'browser/policy/asynchronous_policy_provider_unittest.cc',
+        'browser/policy/asynchronous_policy_test_base.h',
         'browser/policy/config_dir_policy_provider_unittest.cc',
         'browser/policy/configuration_policy_pref_store_unittest.cc',
         'browser/policy/configuration_policy_provider_mac_unittest.cc',
         'browser/policy/configuration_policy_provider_win_unittest.cc',
         'browser/policy/device_token_fetcher_unittest.cc',
         'browser/policy/file_based_policy_provider_unittest.cc',
         'browser/policy/device_management_backend_mock.h',
         'browser/policy/device_management_service_unittest.cc',
         'browser/policy/device_management_policy_cache_unittest.cc',
         'browser/policy/device_management_policy_provider_unittest.cc',
@@ skipping 2288 matching lines @@
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }
 
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