and

weld SfxInsertFloatingFrameDialog

and smuggle in the parent widget for the Gtk File dialog via
an XWindow interface

Change-Id: I971b3a0ffe661c9268115fd5d00bf8eee80e77b3
Reviewed-on: https://gerrit.libreoffice.org/52373Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>