Remove broken focusout listener for System Security Setting OOBE dialog

chrome/browser/resources/chromeos/login/oobe_screen_eula.js

 // Copyright (c) 2012 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 Oobe eula screen implementation.
  */
 
 login.createScreen('EulaScreen', 'eula', function() {
   var CONTEXT_KEY_USAGE_STATS_ENABLED = 'usageStatsEnabled';
 
   return {
     /** @override */
     decorate: function() {
       $('eula-chrome-credits-link').hidden = true;
       $('eula-chromeos-credits-link').hidden = true;
       $('stats-help-link').addEventListener('click', function(event) {
         chrome.send('eulaOnLearnMore');
       });
       $('installation-settings-link').addEventListener(
           'click', function(event) {
             chrome.send('eulaOnInstallationSettingsPopupOpened');
             $('popup-overlay').hidden = false;
             $('installation-settings-ok-button').focus();
           });
       $('installation-settings-ok-button').addEventListener(
           'click', function(event) {
             $('popup-overlay').hidden = true;
           });
-      // Do not allow focus leaving the overlay.
-      $('popup-overlay').addEventListener('focusout', function(event) {
-        // WebKit does not allow immediate focus return.
-        window.setTimeout(function() {
-          // TODO(ivankr): focus cycling.
-          $('installation-settings-ok-button').focus();
-        }, 0);
-        event.preventDefault();
-      });
 
       var self = this;
       $('usage-stats').addEventListener('click', function(event) {
         self.onUsageStatsClicked_($('usage-stats').checked);
         event.stopPropagation();
       });
       $('oobe-eula-md').screen = this;
     },
 
     /**
@@ skipping 111 matching lines @@
       if ($('cros-eula-frame').src) {
         $('cros-eula-frame').src = $('cros-eula-frame').src;
       }
       if ($('oem-eula-frame').src) {
         $('oem-eula-frame').src = $('oem-eula-frame').src;
       }
     },
   };
 });