The old name was misleading (it doesn't take an URL, but a filename);
also, now it's easier to grep for it - doesn't get mixed with
vcl::graphic::loadFromURL.
Change-Id: Ib88d2194200a6a54d2326971e0306ba39f0c7025
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/161578
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
