hg: openjfx/8u-dev/rt: RT-36966: ensure popup is closed if skinnable's scene become null

[hang.vo at oracle.com]

Changeset: 8ffd4827acf5
Author:    David Grieve<david.grieve at oracle.com>
Date:      2014-05-13 08:49 -0400
URL:       http://hg.openjdk.java.net/openjfx/8u-dev/rt/rev/8ffd4827acf5

RT-36966: ensure popup is closed if skinnable's scene become null

! modules/controls/src/main/java/com/sun/javafx/scene/control/skin/ComboBoxPopupControl.java