Options: Remove the hidden class, since we override the hidden attribute to set

chrome/browser/resources/options/chromeos/accounts_options.js

 // Copyright (c) 2011 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.
 
 cr.define('options', function() {
 
   var OptionsPage = options.OptionsPage;
 
   /////////////////////////////////////////////////////////////////////////////
   // AccountsOptions class:
@@ skipping 27 matching lines @@
       options.accounts.UserNameEdit.decorate(userNameEdit);
       userNameEdit.addEventListener('add', this.handleAddUser_);
 
       // If the current user is not the owner, show some warning,
       // and do not show the user list.
       if (AccountsOptions.currentUserIsOwner()) {
         if (!AccountsOptions.whitelistIsManaged()) {
           options.accounts.UserList.decorate(userList);
         }
       } else {
-        $('ownerOnlyWarning').classList.remove('hidden');
+        $('ownerOnlyWarning').hidden = false;
       }
 
       this.addEventListener('visibleChange', this.handleVisibleChange_);
 
       $('useWhitelistCheck').addEventListener('change',
           this.handleUseWhitelistCheckChange_.bind(this));
 
       Preferences.getInstance().addEventListener(
           $('useWhitelistCheck').pref,
           this.handleUseWhitelistPrefChange_.bind(this));
@@ skipping 82 matching lines @@
       userList.addUser(users[i]);
     }
   };
 
   // Export
   return {
     AccountsOptions: AccountsOptions
   };
 
 });