This is a dependency for the DNS proxy CLs.
This CL also adds a new socket for the netd process to inherit which
is owned by the inet group. (so only apps with the INTERNET
permission can use the DNS proxy...)
Change-Id: Ic3475c697913ba85805b4e49801b65e7a1d59289
Fetch the PID, UID, and GID of the remote side of a local socket
connection in case any users of this library class want to check it.
Change-Id: Ia3230e6bc68ab6f93160df9f5996d2bf744b872c
