Improve apps v2 upgrade UX

remoting/remoting_webapp_files.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.
 
 {
   'variables': {
     'remoting_webapp_info_files': [
       'resources/chromoting16.webp',
       'resources/chromoting48.webp',
       'resources/chromoting128.webp',
@@ skipping 42 matching lines @@
       'webapp/crd/js/session_connector.js',
       'webapp/crd/js/session_connector_impl.js',
       'webapp/crd/js/smart_reconnector.js',
       'webapp/crd/js/video_frame_recorder.js',
     ],
     # Remoting core JavaScript files.
     'remoting_webapp_js_core_files': [
       'webapp/base/js/application.js',
       'webapp/base/js/base.js',
       'webapp/base/js/platform.js',
+      'webapp/crd/js/apps_v2_migration.js',
       'webapp/crd/js/error.js',
       'webapp/crd/js/event_handlers.js',
       'webapp/crd/js/plugin_settings.js',
       # TODO(garykac) Split out UI client stuff from remoting.js.
       'webapp/crd/js/remoting.js',
       'webapp/crd/js/typecheck.js',
       'webapp/crd/js/xhr.js',
     ],
     # Host JavaScript files.
     'remoting_webapp_js_host_files': [
@@ skipping 89 matching lines @@
     # These product files are excluded from our JavaScript unittest
     'remoting_webapp_unittest_exclude_files': [
       # background.js is where the onLoad handler is defined, which
       # makes it the entry point of the background page.
       'webapp/crd/js/background.js',
     ],
     # The unit test cases for the webapp
     'remoting_webapp_unittest_js_files': [
       'webapp/unittests/chrome_mocks.js',
       'webapp/js_proto/chrome_proto.js',
+      'webapp/unittests/apps_v2_migration_unittest.js',
       'webapp/unittests/base_unittest.js',
       'webapp/unittests/fallback_signal_strategy_unittest.js',
       'webapp/unittests/it2me_helpee_channel_unittest.js',
       'webapp/unittests/it2me_helper_channel_unittest.js',
       'webapp/unittests/it2me_service_unittest.js',
       'webapp/unittests/l10n_unittest.js',
       'webapp/unittests/menu_button_unittest.js',
       'webapp/unittests/xmpp_connection_unittest.js',
       'webapp/unittests/xmpp_login_handler_unittest.js',
       'webapp/unittests/xmpp_stream_parser_unittest.js',
@@ skipping 155 matching lines @@
       'webapp/crd/html/dialog_token_refresh_failed.html',
       'webapp/crd/html/toolbar.html',
       'webapp/crd/html/ui_header.html',
       'webapp/crd/html/ui_it2me.html',
       'webapp/crd/html/ui_me2me.html',
       'webapp/crd/html/window_frame.html',
     ],
 
   },
 }