Show modal dialog to tell users that the profile is managed when it's the case.

chrome/common/extensions/api/developer_private.idl

 // 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.
 
 // developerPrivate API.
 // This is a private API exposing developing and debugging functionalities for
 // apps and extensions.
 namespace developerPrivate {
 
   enum ItemType {
@@ skipping 186 matching lines @@
     // |callback| : called with the success result string.
     static void packDirectory(DOMString path,
                               DOMString private_key_path,
                               long flags,
                               PackCallback callback);
 
     // Gets localized translated strings for apps_debugger. It returns the
     // strings as a dictionary mapping from string identifier to the
     // translated string to use in the apps_debugger app UI.
     static void getStrings(GetStringsCallback callback);
+
+    // Returns true if the profile is managed.
+    static void isProfileManaged(BooleanCallback callback);
   };
 
   interface Events {
     // Fired when a item state is changed.
     static void onItemStateChanged(EventData response);
   };
 
 };