/usr/share/vala/vapi/friends-0.1.deps is in libfriends-dev 0.1.2+14.04.20131108.1-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | gobject-2.0
glib-2.0
dee-1.0
gio-2.0
libaccounts-glib
|