7daf54c93d
these are always XStorageBasedLibraryContainers, so transport around as that and can avoid casting and some expensive throw/catches Change-Id: I772efceea3bb4f38d70be0497345f5f81173494c Reviewed-on: https://gerrit.libreoffice.org/c/core/+/181156 Tested-by: Jenkins Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>