hg: openjfx/10-dev/rt: 8156592: JFXPanel should use the new FocusEvent.getCause() API

[guru.hb at oracle.com]

Changeset: d1a67396d4a7
Author:    psadhukhan
Date:      2017-08-17 11:35 +0530
URL:       http://hg.openjdk.java.net/openjfx/10-dev/rt/rev/d1a67396d4a7

8156592: JFXPanel should use the new FocusEvent.getCause() API
Reviewed-by: azvegint

! modules/javafx.swing/src/main/java/javafx/embed/swing/JFXPanel.java