[9] Review request : JDK-8171071 : SplitPane is not visible after visible property changes

[Ajit Ghaisas]

Hi Jonathan,

    Request you to review following fix :
    In SplitPaneSkin class, layoutChildren logic is ignored in case visibility 
property is set to false. I have corrected this.

    Bug :  https://bugs.openjdk.java.net/browse/JDK-8171071
    Fix : http://cr.openjdk.java.net/~aghaisas/fx/8171071/webrev.0/

Regards,
Ajit