chromeos: Implement the new D-Bus client for update engine.

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 92 matching lines @@
         'browser/chromeos/dbus/mock_dbus_thread_manager.cc',
         'browser/chromeos/dbus/mock_dbus_thread_manager.h',
         'browser/chromeos/dbus/mock_power_manager_client.cc',
         'browser/chromeos/dbus/mock_power_manager_client.h',
         'browser/chromeos/dbus/mock_sensors_client.cc',
         'browser/chromeos/dbus/mock_sensors_client.h',
         'browser/chromeos/dbus/mock_session_manager_client.cc',
         'browser/chromeos/dbus/mock_session_manager_client.h',
         'browser/chromeos/dbus/mock_speech_synthesizer_client.cc',
         'browser/chromeos/dbus/mock_speech_synthesizer_client.h',
+        'browser/chromeos/dbus/mock_update_engine_client.cc',
+        'browser/chromeos/dbus/mock_update_engine_client.h',
         'browser/chromeos/login/mock_signed_settings_helper.cc',
         'browser/chromeos/login/mock_signed_settings_helper.h',
         # The only thing used from browser is Browser::Type.
         'browser/extensions/mock_extension_special_storage_policy.cc',
         'browser/extensions/mock_extension_special_storage_policy.h',
         'browser/extensions/test_extension_prefs.cc',
         'browser/extensions/test_extension_prefs.h',
         'browser/extensions/test_extension_service.cc',
         'browser/extensions/test_extension_service.h',
         'browser/mock_browsing_data_appcache_helper.cc',
@@ skipping 4144 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'
 }