Converted remoting.Error from an enum to a class

remoting/webapp/crd/js/xmpp_connection.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.
 
 'use strict';
 
 /** @suppress {duplicate} */
 var remoting = remoting || {};
 
 /**
@@ skipping 109 matching lines @@
  */
 remoting.XmppConnection.prototype.sendConnectionSetupResults =
     function(logToServer) {
 };
 
 /** @return {remoting.SignalStrategy.State} Current state */
 remoting.XmppConnection.prototype.getState = function() {
   return this.state_;
 };
 
-/** @return {remoting.Error} Error when in FAILED state. */
+/** @return {!remoting.Error} Error when in FAILED state. */
 remoting.XmppConnection.prototype.getError = function() {
   return this.error_;
 };
 
 /** @return {string} Current JID when in CONNECTED state. */
 remoting.XmppConnection.prototype.getJid = function() {
   return this.jid_;
 };
 
 /** @return {remoting.SignalStrategy.Type} The signal strategy type. */
@@ skipping 213 matching lines @@
 
 /**
  * @param {string} text
  * @private
  */
 remoting.XmppConnection.prototype.onParserError_ = function(text) {
   this.onError_(remoting.Error.UNEXPECTED, text);
 }
 
 /**
- * @param {remoting.Error} error
+ * @param {!remoting.Error} error
  * @param {string} text
  * @private
  */
 remoting.XmppConnection.prototype.onError_ = function(error, text) {
   console.error(text);
   this.error_ = error;
   this.closeSocket_();
   this.setState_(remoting.SignalStrategy.State.FAILED);
 };
 
@@ skipping 10 matching lines @@
 /**
  * @param {remoting.SignalStrategy.State} newState
  * @private
  */
 remoting.XmppConnection.prototype.setState_ = function(newState) {
   if (this.state_ != newState) {
     this.state_ = newState;
     this.onStateChangedCallback_(this.state_);
   }
 };