[10] Review request : JDK-8187379 : VirtualContainerBase: createVirtualFlow must be protected

[Ajit Ghaisas]

Hi Kevin, 

      Request you to review following fix :

      Issue :  https://bugs.openjdk.java.net/browse/JDK-8187379

      Fix for JDK 10 :   
http://cr.openjdk.java.net/~aghaisas/fx/8187379/webrev.0/

Regards,
Ajit