* lisp/net/tramp-gvfs.el (tramp-zeroconf-parse-device-names):
Renamed from `tramp-zeroconf-parse-service-device-names'.
(tramp-zeroconf-parse-webdav-device-names): Removed. Code merged
with `tramp-zeroconf-parse-device-names'.
(tramp-gvfs-parse-device-names): New defun.
(top): Use it when `tramp-zeroconf-parse-device-names' is not
applicable.
* lisp/net/tramp.el (tramp-set-completion-function): The argument
could also be a zeroconf service type.