policy: Add ostream operator overloads to policy types for testing.

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 134 matching lines @@
         'browser/password_manager/test_password_store.cc',
         'browser/password_manager/test_password_store.h',
         'browser/policy/cloud/mock_cloud_policy_client.cc',
         'browser/policy/cloud/mock_cloud_policy_client.h',
         'browser/policy/cloud/mock_cloud_policy_store.cc',
         'browser/policy/cloud/mock_cloud_policy_store.h',
         'browser/policy/cloud/policy_builder.cc',
         'browser/policy/cloud/policy_builder.h',
         'browser/policy/mock_configuration_policy_provider.cc',
         'browser/policy/mock_configuration_policy_provider.h',
+        'browser/policy/policy_test_utils.cc',
+        'browser/policy/policy_test_utils.h',
         'browser/policy/test/local_policy_test_server.cc',
         'browser/policy/test/local_policy_test_server.h',
         'browser/prefs/pref_service_mock_builder.cc',
         'browser/prefs/pref_service_mock_builder.h',
         'browser/profile_resetter/profile_resetter_test_base.cc',
         'browser/profile_resetter/profile_resetter_test_base.h',
         'browser/search_engines/template_url_service_test_util.cc',
         'browser/search_engines/template_url_service_test_util.h',
         'browser/sessions/session_service_test_helper.cc',
         'browser/sessions/session_service_test_helper.h',
@@ skipping 2586 matching lines @@
               # more details.
               'DebugInformationFormat': '3',
               'ProgramDataBaseFileName': '<(PRODUCT_DIR)/unit_tests.exe.pdb',
             },
           },
         },
       ],
     }],
   ],  # 'conditions'
 }