UserPolicyCache only becomes ready after policy has been fetched.

chrome/chrome_tests.gypi

 # Copyright (c) 2011 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' : {
     # Variables for js2gtest rules
     'gypv8sh': '../tools/gypv8sh.py',
     'js2gtest': 'test/base/js2gtest.js',
     'mock_js': 'third_party/mock4js/mock4js.js',
     'test_api_js': 'test/data/webui/test_api.js',
@@ skipping 2400 matching lines @@
         'browser/chromeos/cros/mock_power_library.cc',
         'browser/chromeos/cros/mock_power_library.h',
         'browser/chromeos/cros/mock_screen_lock_library.cc',
         'browser/chromeos/cros/mock_screen_lock_library.h',
         'browser/chromeos/cros/mock_update_library.cc',
         'browser/chromeos/cros/mock_update_library.h',
         'browser/chromeos/extensions/file_browser_notifications_browsertest.cc',
         'browser/chromeos/login/enrollment/enterprise_enrollment_screen_browsertest.cc',
         'browser/chromeos/login/existing_user_controller_browsertest.cc',
         'browser/chromeos/login/login_browsertest.cc',
+        'browser/chromeos/login/login_utils_unittest.cc',
         'browser/chromeos/login/mock_authenticator.cc',
         'browser/chromeos/login/mock_authenticator.h',
         'browser/chromeos/login/enrollment/mock_enterprise_enrollment_screen.cc',
         'browser/chromeos/login/enrollment/mock_enterprise_enrollment_screen.h',
         'browser/chromeos/login/mock_eula_screen.cc',
         'browser/chromeos/login/mock_eula_screen.h',
         'browser/chromeos/login/mock_network_screen.cc',
         'browser/chromeos/login/mock_network_screen.h',
         'browser/chromeos/login/mock_screen_observer.cc',
         'browser/chromeos/login/mock_screen_observer.h',
@@ skipping 1823 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }