[AppRemoting] Break out AppRemoting shared module (re-land).

remoting/app_remoting_webapp_files.gypi

 # Copyright 2015 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': {
     'ar_shared_resource_files': [
       'webapp/app_remoting/html/ar_dialog.css',
       'webapp/app_remoting/html/ar_main.css',
       'webapp/app_remoting/html/feedback_consent.css',
@@ skipping 39 matching lines @@
       'webapp/base/html/connection_dropped_dialog.html',
       'webapp/app_remoting/html/context_menu.html',
       'webapp/app_remoting/html/idle_dialog.html',
     ],
     'ar_main_js_files': [
       'webapp/app_remoting/js/application_context_menu.js',
       'webapp/app_remoting/js/app_connected_view.js',
       'webapp/app_remoting/js/app_remoting.js',
       'webapp/app_remoting/js/app_remoting_activity.js',
       'webapp/app_remoting/js/ar_auth_dialog.js',
-      'webapp/app_remoting/js/ar_main.js',
       'webapp/app_remoting/js/context_menu_adapter.js',
       'webapp/app_remoting/js/context_menu_chrome.js',
       'webapp/app_remoting/js/context_menu_dom.js',
       'webapp/app_remoting/js/drag_and_drop.js',
       'webapp/app_remoting/js/gaia_license_manager.js',
       'webapp/app_remoting/js/idle_detector.js',
       'webapp/app_remoting/js/keyboard_layouts_menu.js',
       'webapp/app_remoting/js/license_manager.js',
       'webapp/app_remoting/js/loading_window.js',
       'webapp/app_remoting/js/submenu_manager.js',
       'webapp/app_remoting/js/window_activation_menu.js',
-      'webapp/base/js/application.js',
-      'webapp/base/js/base.js',
       'webapp/base/js/message_window_helper.js',
       'webapp/base/js/message_window_manager.js',
       '<@(remoting_webapp_shared_js_auth_google_files)',
       '<@(remoting_webapp_shared_js_client_files)',
       '<@(remoting_webapp_shared_js_core_files)',
       '<@(remoting_webapp_shared_js_host_files)',
       '<@(remoting_webapp_shared_js_logging_files)',
       '<@(remoting_webapp_shared_js_signaling_files)',
       '<@(remoting_webapp_shared_js_ui_files)',
     ],
 
-    'ar_background_js_files': [
+    # Variables for ar_background.html.
+    'ar_background_template':
+      '<(DEPTH)/remoting/webapp/app_remoting/html/template_background.html',
+    'ar_background_html_js_files': [
       'webapp/app_remoting/js/ar_background.js',
       'webapp/base/js/platform.js',
     ],
 
+    'ar_vendor_js_files': [
+      'webapp/app_remoting/vendor/arv_main.js',
+    ],
+
+    'ar_vendor_html_files': [
+      'webapp/app_remoting/vendor/arv_background.html',
+      'webapp/app_remoting/vendor/arv_main.html',
+      'webapp/app_remoting/vendor/arv_wcs_sandbox.html',
+    ],
+
     'ar_all_js_files': [
       '<@(ar_main_js_files)',
       '<@(ar_feedback_consent_html_js_files)',
       '<@(remoting_webapp_message_window_html_js_files)',
       '<@(remoting_webapp_wcs_sandbox_html_js_files)',
-      # Referenced from the manifest.
-      '<@(ar_background_js_files)',
+      '<@(ar_background_html_js_files)',
     ],
 
     # Files that contain localizable strings.
     'app_remoting_webapp_localizable_files': [
       '<(ar_main_template)',
       '<@(ar_main_template_files)',
       '<(ar_feedback_consent_template)',
       '<(ar_loading_window_template)',
       '<(remoting_webapp_template_message_window)',
       '<(remoting_webapp_template_wcs_sandbox)',
       '<@(ar_all_js_files)',
     ],
 
   },  # end of variables
 }