Settings People Revamp: Fix Mange Profile empty name crash.

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 34 matching lines @@
   handleAvailableIcons_: function(iconUrls) {
     this.availableIconUrls = iconUrls;
   },
 
   /**
    * Handler for when the profile name field is changed, then blurred.
    * @private
    * @param {!Event} event
    */
   onProfileNameChanged_: function(event) {
+    if (event.target.invalid)
+      return;
+
     settings.SyncPrivateApi.setProfileIconAndName(this.profileIconUrl,
                                                   event.target.value);
   },
 
   /**
    * Handler for when the user clicks a new profile icon.
    * @private
    * @param {!Event} event
    */
   onIconTap_: function(event) {
@@ skipping 19 matching lines @@
    * Computed binding determining which profile icon button is toggled on.
    * @private
    * @param {!string} iconUrl
    * @param {!string} paramIconUrl
    * @return {boolean}
    */
   isActiveIcon_: function(iconUrl, profileIconUrl) {
     return iconUrl == profileIconUrl;
   },
 });