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

remoting/webapp/crd/js/host_install_dialog.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 50 matching lines @@
   /** @type {remoting.HostInstaller} */
   var hostInstaller = new remoting.HostInstaller();
 
   /** @type {remoting.HostInstallDialog} */
   var that = this;
 
   this.hostInstaller_.downloadAndWaitForInstall().then(function() {
     that.continueInstallButton_.click();
     that.hostInstaller_.cancel();
   }, function(){
-    that.onErrorHandler_(remoting.Error.CANCELLED);
+    that.onErrorHandler_(new remoting.Error(remoting.Error.Tag.CANCELLED));
     that.hostInstaller_.cancel();
   });
 };
 
 /**
  * In manual host installation, onDone handler must call this method if it
  * detects that the host components are still unavailable. The same onDone
  * and onError callbacks will be used when user clicks Ok or Cancel.
  */
 remoting.HostInstallDialog.prototype.tryAgain = function() {
@@ skipping 14 matching lines @@
 
   this.onDoneHandler_();
 };
 
 remoting.HostInstallDialog.prototype.onCancelClicked_ = function() {
   this.continueInstallButton_.removeEventListener(
       'click', this.onOkClickedHandler_, false);
   this.cancelInstallButton_.removeEventListener(
       'click', this.onCancelClickedHandler_, false);
   this.hostInstaller_.cancel();
-  this.onErrorHandler_(remoting.Error.CANCELLED);
+  this.onErrorHandler_(new remoting.Error(remoting.Error.Tag.CANCELLED));
 };
 
 remoting.HostInstallDialog.prototype.onRetryClicked_ = function() {
   this.retryInstallButton_.removeEventListener(
       'click', this.onRetryClickedHandler_.bind(this), false);
   this.continueInstallButton_.addEventListener(
       'click', this.onOkClickedHandler_, false);
   this.cancelInstallButton_.addEventListener(
       'click', this.onCancelClickedHandler_, false);
   remoting.setMode(remoting.AppMode.HOST_INSTALL_PROMPT);
 };