hg: openjfx/8/graphics/rt: RT-28448 Gtk: DnD event.getDragboard().getString() produces crash if dragboard does not contain string

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Changeset: c3b977f54869
Author:    Alexander Zvegintsev
Date:      2013-02-27 16:50 +0400
URL:       http://hg.openjdk.java.net/openjfx/8/graphics/rt/rev/c3b977f54869

RT-28448 Gtk: DnD event.getDragboard().getString() produces crash if dragboard does not contain string

! glass/glass-lib-gtk/src/glass_dnd.cpp
! glass/glass-lib-gtk/src/glass_general.cpp