hg: openjfx/8/controls/rt: RT-28454 PopupWindow does not disapper when control is not visible.

[hang.vo at oracle.com]

Changeset: 83fba6616904
Author:    Paru Somashekar <paru.somashekar at oracle.com>
Date:      2013-02-21 16:43 -0800
URL:       http://hg.openjdk.java.net/openjfx/8/controls/rt/rev/83fba6616904

RT-28454 PopupWindow does not disapper when control is not visible.

! javafx-ui-common/src/javafx/stage/PopupWindow.java