Add browser test for CustomizationWallpaperDownloader.

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.
 {
   'includes': [
     'js_unittest_vars.gypi',
   ],
   'targets': [
     {
       'target_name': 'interactive_ui_tests',
@@ skipping 264 matching lines @@
             'browser/chromeos/login/eula_browsertest.cc',
             'browser/chromeos/login/login_browsertest.cc',
             'browser/chromeos/login/login_manager_test.cc',
             'browser/chromeos/login/login_manager_test.h',
             'browser/chromeos/login/login_ui_browsertest.cc',
             'browser/chromeos/login/oobe_browsertest.cc',
             'browser/chromeos/login/screen_locker_browsertest.cc',
             'browser/chromeos/login/screen_locker_tester.cc',
             'browser/chromeos/login/screen_locker_tester.h',
             'browser/chromeos/login/wallpaper_manager_browsertest.cc',
+            'browser/chromeos/login/wallpaper_manager_test_utils.cc',
+            'browser/chromeos/login/wallpaper_manager_test_utils.h',
             'test/data/chromeos/service_login.html',
           ],
           'sources!': [
             # chromeos does not use cross-platform panels
             'browser/notifications/notification_browsertest.cc',
             'browser/ui/panels/detached_panel_browsertest.cc',
             'browser/ui/panels/docked_panel_browsertest.cc',
             'browser/ui/panels/panel_browsertest.cc',
             'browser/ui/panels/panel_drag_browsertest.cc',
             'browser/ui/panels/panel_resize_browsertest.cc',
@@ skipping 565 matching lines @@
         'browser/chrome_plugin_browsertest.cc',
         'browser/chrome_security_exploit_browsertest.cc',
         'browser/chrome_switches_browsertest.cc',
         'browser/chromeos/accessibility/accessibility_manager_browsertest.cc',
         'browser/chromeos/accessibility/magnification_manager_browsertest.cc',
         'browser/chromeos/accessibility/speech_monitor.cc',
         'browser/chromeos/accessibility/speech_monitor.h',
         'browser/chromeos/app_mode/kiosk_app_manager_browsertest.cc',
         'browser/chromeos/app_mode/kiosk_app_update_service_browsertest.cc',
         'browser/chromeos/attestation/attestation_policy_browsertest.cc',
+        'browser/chromeos/customization_wallpaper_downloader_browsertest.cc',
         'browser/chromeos/device/input_service_proxy_browsertest.cc',
         'browser/chromeos/drive/drive_integration_service_browsertest.cc',
         'browser/chromeos/drive/drive_notification_manager_factory_browsertest.cc',
         'browser/chromeos/drive/test_util.cc',
         'browser/chromeos/drive/test_util.h',
         'browser/chromeos/extensions/accessibility_features_apitest.cc',
         'browser/chromeos/extensions/screenlock_private_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_browser_private_apitest.cc',
@@ skipping 59 matching lines @@
         'browser/chromeos/login/test/app_window_waiter.h',
         'browser/chromeos/login/test/https_forwarder.cc',
         'browser/chromeos/login/test/https_forwarder.h',
         'browser/chromeos/login/test_login_utils.cc',
         'browser/chromeos/login/test_login_utils.h',
         'browser/chromeos/login/user_adding_screen_browsertest.cc',
         'browser/chromeos/login/user_image_manager_browsertest.cc',
         'browser/chromeos/login/user_image_manager_test_util.cc',
         'browser/chromeos/login/user_image_manager_test_util.h',
         'browser/chromeos/login/wallpaper_manager_policy_browsertest.cc',
+        'browser/chromeos/login/wallpaper_manager_test_utils.cc',
+        'browser/chromeos/login/wallpaper_manager_test_utils.h',
         'browser/chromeos/login/wizard_controller_browsertest.cc',
         'browser/chromeos/login/wizard_in_process_browser_test.cc',
         'browser/chromeos/login/wizard_in_process_browser_test.h',
         'browser/chromeos/memory/oom_priority_manager_browsertest.cc',
         'browser/chromeos/net/network_portal_detector_impl_browsertest.cc',
         'browser/chromeos/policy/device_local_account_browsertest.cc',
         'browser/chromeos/policy/device_policy_cros_browser_test.cc',
         'browser/chromeos/policy/device_policy_cros_browser_test.h',
         'browser/chromeos/policy/device_status_collector_browsertest.cc',
         'browser/chromeos/policy/device_system_use_24hour_clock_browsertest.cc',
@@ skipping 1973 matching lines @@
             ['enable_webrtc==1', {
               'dependencies': [
                 '../third_party/libjingle/libjingle.gyp:libjingle_webrtc'
               ]
             }],
           ],
         }]
     }],
   ],  # 'conditions'
 }