This class is only used inside package module, and totally private
to the module.

Change-Id: Ib00e7066c22a74c0b16c8d6ecf72b99ac42682dd
Reviewed-on: https://gerrit.libreoffice.org/32945Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Kohei Yoshida <libreoffice@kohei.us>