Add a header when fetching pages under the DMServer URL.

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 1072 matching lines @@
         'browser/password_manager/psl_matching_helper_unittest.cc',
         'browser/performance_monitor/database_unittest.cc',
         'browser/plugins/plugin_finder_unittest.cc',
         'browser/plugins/plugin_metadata_unittest.cc',
         'browser/plugins/plugin_prefs_unittest.cc',
         'browser/policy/autofill_policy_handler_unittest.cc',
         'browser/policy/browser_policy_connector_unittest.cc',
         'browser/policy/cloud/cloud_policy_invalidator_unittest.cc',
         'browser/policy/cloud/mock_user_cloud_policy_store.cc',
         'browser/policy/cloud/mock_user_cloud_policy_store.h',
+        'browser/policy/cloud/policy_header_service_unittest.cc',
         'browser/policy/cloud/user_cloud_policy_manager_unittest.cc',
         'browser/policy/cloud/user_cloud_policy_store_unittest.cc',
         'browser/policy/cloud/user_policy_signin_service_unittest.cc',
         'browser/policy/configuration_policy_handler_unittest.cc',
         'browser/policy/configuration_policy_pref_store_test.cc',
         'browser/policy/configuration_policy_pref_store_test.h',
         'browser/policy/configuration_policy_pref_store_unittest.cc',
         'browser/policy/file_selection_dialogs_policy_handler_unittest.cc',
         'browser/policy/generate_policy_source_unittest.cc',
         'browser/policy/javascript_policy_handler_unittest.cc',
@@ skipping 1797 matching lines @@
             'browser/ui/app_list/test/fake_profile_store.cc',
             'browser/ui/app_list/test/fake_profile_store.h',
             'browser/ui/app_list/test/fast_show_pickler_unittest.cc',
             'browser/ui/views/app_list/win/app_list_win_unittest.cc',
           ],
         },
       ],
     }],
   ],  # 'conditions'
 }