Should help to eventually get rid of the wrapper in reportdesign.

Change-Id: I9fc94f2ed650561eb47f2f91939b3aa37f031c3b
Reviewed-on: https://gerrit.libreoffice.org/29910Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Maxim Monastirsky <momonasmon@gmail.com>