Settings People Revamp: Update ManageProfileHandler to use Promises.

chrome/browser/resources/settings/people_page/manage_profile.js

 // Copyright 2015 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
  * 'settings-manage-profile' is the settings subpage containing controls to
  * edit a profile's name, icon, and desktop shortcut.
  */
 Polymer({
@@ skipping 27 matching lines @@
     browserProxy_: {
       type: Object,
       value: function() {
         return settings.ManageProfileBrowserProxyImpl.getInstance();
       },
     },
   },
 
   /** @override */
   attached: function() {
-    this.addWebUIListener('available-icons-changed', function(iconUrls) {
+    var setIcons = function(iconUrls) {
       this.availableIconUrls = iconUrls;
-    }.bind(this));
+    }.bind(this);
 
-    this.browserProxy_.getAvailableIcons();
+    this.addWebUIListener('available-icons-changed', setIcons);
+    this.browserProxy_.getAvailableIcons().then(setIcons);
   },
 
   /**
    * Handler for when the profile name field is changed, then blurred.
    * @private
    * @param {!Event} event
    */
   onProfileNameChanged_: function(event) {
     if (event.target.invalid)
       return;
 
     this.browserProxy_.setProfileIconAndName(this.profileIconUrl,
                                              event.target.value);
   },
 
   /**
    * Handler for when the an image is activated.
    * @param {!Event} event
    * @private
    */
   onIconActivate_: function(event) {
     /** @type {{iconUrl: string}} */
     var buttonData = event.detail.item.dataset;
     this.browserProxy_.setProfileIconAndName(buttonData.iconUrl,
                                              this.profileName);
   },
 });