Changed identity API to use promises instead of callbacks.

remoting/webapp/base/js/auth_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.
 
 /** @suppress {duplicate} */
 var remoting = remoting || {};
 
 (function() {
 
 'use strict';
@@ skipping 45 matching lines @@
       /** @type {ClientRect} */(this.borderElement_.getBoundingClientRect());
   rects.push({left: rect.left,
               top: rect.top,
               width: rect.width,
               height: rect.height});
 };
 
 /** @private */
 remoting.AuthDialog.prototype.onClick_ = function() {
   this.rootElement_.hidden = true;
-  this.onAuthButtonDeferred_.resolve();
+  this.onAuthButtonDeferred_.resolve(null);
   this.onAuthButtonDeferred_ = null;
   remoting.windowShape.updateClientWindowShape();
 };
 
 /**
  * @return {Promise} A Promise object that resolves when the user clicks on the
  *   auth button.
  */
 remoting.AuthDialog.prototype.show = function() {
   if (this.isVisible()) {
@@ skipping 18 matching lines @@
  */
 remoting.AuthDialog.getInstance = function() {
   if (!instance_) {
     var rootElement = document.getElementById('auth-dialog');
     instance_ = new remoting.AuthDialog(rootElement);
   }
   return instance_;
 };
 
 })();