Bug#403639: Fix committed in svn repo

[Attilio Fiandrotti]

Hi

Just wanted to say the patch was eventually committed to gnome svn [1]: 
i tried a backport to our 2.8.20 but was unable to due to that complex 
set of patches already present :(
Would be possible building an experimental 2-8-20 udeb with this patch 
to see what its effects are?

thanks

Attilio

[1] 
http://svn.gnome.org/viewcvs/gtk%2B/trunk/gdk/directfb/gdkwindow-directfb.c?r1=16906&r2=17014&rev=17014&sortby=date