and match virtual device scale with widget device scale

Change-Id: I1f35dcbaec94be12758ad6e4276bfd6bda4b1e88
Reviewed-on: https://gerrit.libreoffice.org/31080Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
Tested-by: Jenkins <ci@libreoffice.org>
Tested-by: Tomaž Vajngerl <quikee@gmail.com>