for gtk3. Probably also a fairly dumb idea for gtk2, but with the
extra unblocking opportunities it probably just "works out ok" in
that model.

Change-Id: I3d4716c691fc84a5e68c210fee51f9e31cfacc02
(cherry picked from commit f9dfd012)
Reviewed-on: https://gerrit.libreoffice.org/19929Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
Tested-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
(cherry picked from commit 11d0bacd)