Converted remoting.Error from an enum to a class

remoting/webapp/app_remoting/js/loading_window.js

 // 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.
 
 /**
  * @fileoverview
  * Loading dialog for AppRemoting apps.
  */
 
 'use strict';
 
 /** @suppress {duplicate} */
 var remoting = remoting || {};
 
 /**
  * Namespace for loading window functions.
  * @type {Object}
  */
 remoting.LoadingWindow = function() {};
 
 /**
  * When the loading window times out, replace it with a generic
  * "Service Unavailable" message.
  * @private
  */
 remoting.LoadingWindow.onTimeout_ = function() {
   remoting.MessageWindow.showErrorMessage(
       remoting.app.getApplicationName(),
-      chrome.i18n.getMessage(remoting.Error.SERVICE_UNAVAILABLE));
+      chrome.i18n.getMessage(remoting.Error.Tag.SERVICE_UNAVAILABLE));
 };
 
 /**
  * Show the loading dialog and start a timer When the timer expires, an error
  * message will be displayed and the application will quit.
  */
 remoting.LoadingWindow.show = function() {
   if (remoting.loadingWindow_) {
     return;
   }
@@ skipping 22 matching lines @@
  */
 remoting.LoadingWindow.close = function() {
   if (remoting.loadingWindow_) {
     remoting.loadingWindow_.close();
   }
   remoting.loadingWindow_ = null;
 };
 
 /** @type {remoting.MessageWindow} */
 remoting.loadingWindow_ = null;