hg: openjfx/8u-dev/rt: RT-30457 Gtk: setDragView doesn't work on linux

[hang.vo at oracle.com]

Changeset: 1265d7cece05
Author:    azvegint
Date:      2014-04-24 14:08 +0400
URL:       http://hg.openjdk.java.net/openjfx/8u-dev/rt/rev/1265d7cece05

RT-30457 Gtk: setDragView doesn't work on linux
Reviewed-by: anthony

! modules/graphics/src/main/native-glass/gtk/glass_dnd.cpp
! modules/graphics/src/main/native-glass/gtk/glass_dnd.h