Updated remoting.xhr API to use promises. Removed access to the native

remoting/webapp/crd/js/wcs_adapter.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 || {};
 
 /**
  * WCS-based SignalStrategy implementation. Used instead of XMPPConnection
  * when XMPP cannot be used (e.g. in V1 app).
  *
  * @constructor
  * @implements {remoting.SignalStrategy}
  */
 remoting.WcsAdapter = function() {
   /** @private {?function(remoting.SignalStrategy.State):void} */
   this.onStateChangedCallback_ = null;
   /** @private {?function(Element):void} */
   this.onIncomingStanzaCallback_ = null;
   /** @private */
   this.state_ = remoting.SignalStrategy.State.NOT_CONNECTED;
   /** @private */
   this.jid_ = '';
   /** @private */
-  this.error_ = remoting.Error.NONE;
+  this.error_ = remoting.Error.none();
 };
 
 /**
  * @param {function(remoting.SignalStrategy.State):void} onStateChangedCallback
  */
 remoting.WcsAdapter.prototype.setStateChangedCallback = function(
     onStateChangedCallback) {
   this.onStateChangedCallback_ = onStateChangedCallback;
 };
 
@@ skipping 108 matching lines @@
 /**
  * @param {remoting.SignalStrategy.State} newState
  * @private
  */
 remoting.WcsAdapter.prototype.setState_ = function(newState) {
   if (this.state_ != newState) {
     this.state_ = newState;
     this.onStateChangedCallback_(this.state_);
   }
 };