MD Settings: ignore modified key events in the profile avatar grid

ui/webui/resources/cr_elements/cr_profile_avatar_selector/cr_profile_avatar_selector.js

 // Copyright 2016 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 'cr-profile-avatar-selector' is an element that displays
  * profile avatar icons and allows an avatar to be selected.
  */
 
 /** @typedef {{url: string, label: string}} */
 var AvatarIcon;
 
 Polymer({
   is: 'cr-profile-avatar-selector',
 
   properties: {
     /**
+     * The list of profile avatar URLs and labels.
+     * @type {!Array<!AvatarIcon>}
+     */
+    avatars: {
+      type: Array,
+      value: function() { return []; }
+    },
+
+    /**
      * The currently selected profile avatar URL. May be a data URI.
      * @type {string}
      */
     selectedAvatarUrl: {
       type: String,
       notify: true
     },
 
-    /**
-     * The list of profile avatar URLs and labels.
-     * @type {!Array<!AvatarIcon>}
-     */
-    avatars: {
-      type: Array,
-      value: function() { return []; }
-    }
+    ignoreModifiedKeyEvents: {
+      type: Boolean,
+      value: false,
+    },
   },
 
   /**
    * @param {string} iconUrl
    * @return {string} A CSS imageset for multiple scale factors.
    * @private
    */
   getIconImageset_: function(iconUrl) {
     return cr.icon.getImage(iconUrl);
   },
 });