hg: openjfx/9-dev/rt: 8162883: ESC button fails to cancel Dialog

[chien.yang at oracle.com]

Changeset: 4b8a299cbbbc
Author:    ckyang
Date:      2016-08-02 13:14 -0700
URL:       http://hg.openjdk.java.net/openjfx/9-dev/rt/rev/4b8a299cbbbc

8162883: ESC button fails to cancel Dialog
Reviewed-by: jgiles

! modules/javafx.controls/src/main/java/javafx/scene/control/skin/ButtonSkin.java