/// <summary>
 /// The platform run message loop.
 /// </summary>
 protected override void RunMessageLoop()
 {
     if (CefRuntime.Platform == CefRuntimePlatform.Windows)
     {
         /* run the GTK+ main loop */
         NativeMethods.Run();
     }
     else
     {
         CefRuntime.RunMessageLoop();
     }
 }