[cros] Add --stub-cros-settings option for testing.

chrome/chrome_browser.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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 764 matching lines @@
         'browser/chromeos/status/status_area_bubble.cc',
         'browser/chromeos/status/status_area_bubble.h',
         'browser/chromeos/status/status_area_button.cc',
         'browser/chromeos/status/status_area_button.h',
         'browser/chromeos/status/status_area_view.cc',
         'browser/chromeos/status/status_area_view.h',
         'browser/chromeos/status/status_area_view_chromeos.cc',
         'browser/chromeos/status/status_area_view_chromeos.h',
         'browser/chromeos/status/timezone_clock_updater.cc',
         'browser/chromeos/status/timezone_clock_updater.h',
+        'browser/chromeos/stub_cros_settings_provider.cc',
+        'browser/chromeos/stub_cros_settings_provider.h',
         'browser/chromeos/system/name_value_pairs_parser.cc',
         'browser/chromeos/system/name_value_pairs_parser.h',
         'browser/chromeos/system/runtime_environment.cc',
         'browser/chromeos/system/runtime_environment.h',
         'browser/chromeos/system/screen_locker_settings.cc',
         'browser/chromeos/system/screen_locker_settings.h',
         'browser/chromeos/system/statistics_provider.cc',
         'browser/chromeos/system/statistics_provider.h',
         'browser/chromeos/system/syslogs_provider.cc',
         'browser/chromeos/system/syslogs_provider.h',
@@ skipping 4455 matching lines @@
       'type': 'static_library',
       'sources': [ 'browser/history/in_memory_url_index_cache.proto' ],
       'variables': {
         'proto_in_dir': 'browser/history',
         'proto_out_dir': 'chrome/browser/history',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }