to serve as a shared/common base class, so I can plumb SvxShape types through chart2. Change-Id: I8758fff1599c92a214b334ee44cf7b4e582c1915 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/127873 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>