Found by reviewing the output of and the code around
git grep -n "unique_ptr.*new.*\[.*\]" | grep -v "\[\]"

The onlineupdater code needs a little bit more attention.

Change-Id: I8b70c7da7db60af52bfac12314a21602ede8bfc0
Reviewed-on: https://gerrit.libreoffice.org/60162
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>