hg: openjfx/9-dev/rt: 8090249: [Linux] Restoring owner stage after minimize does not restore position of child stage

[kevin.rushforth at oracle.com]

Changeset: be7ceb6343c7
Author:    ssadetsky
Date:      2017-02-09 11:13 -0800
URL:       http://hg.openjdk.java.net/openjfx/9-dev/rt/rev/be7ceb6343c7

8090249: [Linux] Restoring owner stage after minimize does not restore position of child stage
Reviewed-by: kcr

! modules/javafx.graphics/src/main/native-glass/gtk/glass_window.cpp
+ tests/system/src/test/java/test/javafx/stage/DeiconifiedWithChildTest.java