hg: openjfx/9-dev/rt: 8176844: Menus not always selected properly with GTK 3

[semyon.sadetsky at oracle.com]

Changeset: 2a219188ca02
Author:    ssadetsky
Date:      2017-04-06 07:40 -0700
URL:       http://hg.openjdk.java.net/openjfx/9-dev/rt/rev/2a219188ca02

8176844: Menus not always selected properly with GTK 3
Reviewed-by: kcr, ddhill

! modules/javafx.graphics/src/main/native-glass/gtk/glass_general.cpp