Implement the private API for quick unlock.

chrome/chrome_tests.gypi

 # Copyright 2013 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': {
     'build_angle_deqp_tests%': 0,
     'chrome_browser_extensions_test_support_sources': [
       # A list of sources which is shared between different browser tests.
       'browser/apps/app_browsertest_util.cc',
       'browser/apps/app_browsertest_util.h',
@@ skipping 706 matching lines @@
       'browser/chromeos/device/input_service_proxy_browsertest.cc',
       'browser/chromeos/display/quirks_browsertest.cc',
       'browser/chromeos/drive/drive_integration_service_browsertest.cc',
       'browser/chromeos/extensions/accessibility_features_apitest.cc',
       'browser/chromeos/extensions/echo_private_apitest.cc',
       'browser/chromeos/extensions/file_manager/file_browser_handler_api_test.cc',
       'browser/chromeos/extensions/file_manager/file_manager_private_apitest.cc',
       'browser/chromeos/extensions/file_system_provider/file_system_provider_apitest.cc',
       'browser/chromeos/extensions/info_private_apitest.cc',
       'browser/chromeos/extensions/input_method_apitest_chromeos.cc',
+      'browser/chromeos/extensions/quick_unlock_private/quick_unlock_private_api_test.cc',
       'browser/chromeos/extensions/users_private/users_private_apitest.cc',
       'browser/chromeos/extensions/virtual_keyboard_browsertest.cc',
       'browser/chromeos/extensions/virtual_keyboard_browsertest.h',
       'browser/chromeos/extensions/wallpaper_apitest.cc',
       'browser/chromeos/extensions/wallpaper_manager_browsertest.cc',
       'browser/chromeos/extensions/wallpaper_private_apitest.cc',
       'browser/chromeos/file_manager/audio_player_browsertest.cc',
       'browser/chromeos/file_manager/external_filesystem_apitest.cc',
       'browser/chromeos/file_manager/file_manager_browsertest.cc',
       'browser/chromeos/file_manager/file_manager_browsertest_base.cc',
@@ skipping 2875 matching lines @@
             'browser',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
           ],
         }]
     }],
   ],  # 'conditions'
 }