to when the window size is set, and adjust to gtk3 hidpi
scaling factor

Change-Id: Id9bd0defd0b6ae640ac57f88133d954202d4bcc3
Reviewed-on: https://gerrit.libreoffice.org/42143Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>