Added class to subscribe to GCD notifications over XMPP.

remoting/remoting_test.gypi

 # Copyright 2014 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': [
     {
       # GN version: //remoting:test_support
       'target_name': 'remoting_test_common',
       'type': 'static_library',
@@ skipping 236 matching lines @@
         'protocol/negotiating_authenticator_unittest.cc',
         'protocol/pairing_registry_unittest.cc',
         'protocol/port_range_unittest.cc',
         'protocol/ppapi_module_stub.cc',
         'protocol/ssl_hmac_channel_authenticator_unittest.cc',
         'protocol/third_party_authenticator_unittest.cc',
         'protocol/v2_authenticator_unittest.cc',
         'signaling/iq_sender_unittest.cc',
         'signaling/jid_util_unittest.cc',
         'signaling/log_to_server_unittest.cc',
+        'signaling/push_notification_subscriber_unittest.cc',
         'signaling/server_log_entry_unittest.cc',
         'signaling/server_log_entry_unittest.h',
         'signaling/xmpp_login_handler_unittest.cc',
         'signaling/xmpp_stream_parser_unittest.cc',
         'signaling/xmpp_signal_strategy_unittest.cc',
         'test/access_token_fetcher_unittest.cc',
         'test/app_remoting_test_driver_environment_unittest.cc',
         'test/remote_host_info_fetcher_unittest.cc',
         'test/test_chromoting_client_unittest.cc',
       ],
@@ skipping 244 matching lines @@
           'dependencies': [
             'remoting_nacl.gyp:remoting_client_plugin_nacl',
             'remoting_webapp_browser_test_main_html',
           ],
           'includes': [ 'remoting_webapp.gypi', ],
         },  # end of target 'remoting_webapp_browser_test'
       ]
     }]
   ] # end of 'conditions'
 }