[9] Review Request for 8134669: Empty screen insets in Gnome 3, OEL 7 in multiscreen mode

[Semyon Sadetsky]

Hello,

Please review fix for JDK9:
bug: https://bugs.openjdk.java.net/browse/JDK-8134669
webrev: http://cr.openjdk.java.net/~ssadetsky/8134669/webrev.00/

The Gnome WM does not set extended hints with insets, so they are 
unavailable. As solution it is proposed to query the single screen 
insets for the main screen and return empty insets for other screens.

--Semyon