Show warning text in the user settings page for non-owner users.

chrome/browser/resources/options/chromeos_accounts_options.js

 // Copyright (c) 2010 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 23 matching lines @@
       // Set up accounts page.
       var userList = $('userList');
       options.accounts.UserList.decorate(userList);
 
       var userNameEdit = $('userNameEdit');
       options.accounts.UserNameEdit.decorate(userNameEdit);
       userNameEdit.addEventListener('add', this.handleAddUser_);
 
       userList.disabled =
       userNameEdit.disabled = !AccountsOptions.currentUserIsOwner();
+      // If the current user is not the owner, show some warning.
+      if (!AccountsOptions.currentUserIsOwner()) {
+        $('ownerOnlyWarning').classList.remove('hidden');
+      }
 
       this.addEventListener('visibleChange', this.handleVisibleChange_);
 
       $('useWhitelistCheck').addEventListener('click',
           this.handleUseWhitelistCheckClick_);
     },
 
     /**
      * Handler for OptionsPage's visible property change event.
      * @private
@@ skipping 51 matching lines @@
       userList.addUser(users[i]);
     }
   };
 
   // Export
   return {
     AccountsOptions: AccountsOptions
   };
 
 });