No .desktop file for policy kit? Source is very small, so I could add it to gnome-flashback module... How it is autostarted? What it does? It would be nice to give some steps so I can easily verify if works or not.
GNOME devs don't want that gnome-screensaver is maintained - they suggested to fork/rename to gnome-flashback-screensaver. But in this case I simply better integrate it in gnome-flashback module.