Fixed guest browsing and offline login links.

chrome/browser/resources/chromeos/login/screen_error_message.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 Offline message screen implementation.
  */
 
 cr.define('login', function() {
   // Screens that should have offline message overlay.
@@ skipping 108 matching lines @@
       $('error-offline-login-link').onclick = function() {
         chrome.send('offlineLogin');
       };
     },
 
     onBeforeShow: function(lastNetworkType) {
       var currentScreen = Oobe.getInstance().currentScreen;
 
       cr.ui.DropDown.show('offline-networks-list', false, lastNetworkType);
 
-      $('error-guest-signin').hidden = $('guestSignin').hidden ||
-          !$('add-user-header-bar-item').hidden;
+      $('error-guest-signin').hidden = $('guestSignin').hidden;
 
       $('error-offline-login').hidden = !currentScreen.isOfflineAllowed;
     },
 
     onBeforeHide: function() {
       cr.ui.DropDown.hide('offline-networks-list');
     },
 
     /**
      * Prepares error screen to show proxy error.
@@ skipping 181 matching lines @@
    * via template.
    */
   ErrorMessageScreen.updateLocalizedContent = function() {
     $('error-message').updateLocalizedContent_();
   };
 
   return {
     ErrorMessageScreen: ErrorMessageScreen
   };
 });