tree f175c9ba6263b2efdb6482fbc62f38b90df8fc56
parent b13c8b9dfe0c396f6a0fd91b95e22f834b546e59
author David Ostrovsky <david@ostrovsky.org> 1560160536 +0200
committer David Ostrovsky <david@ostrovsky.org> 1570672536 +0200

Allow to select between different ref permission backends

This change allows to select between advertise refs filter and
permission aware ref database backend for ref visibility check.
For safety, we keep running the ADVERTISE_REF_HOOK in addition to
the new mechanism, but in future gerrit releases the default will
be switched to PERMISSION_AWARE_REF_DATABASE and the old backend
will be deprecated and removed.

RefAdvertisementIT is extended to run the tests against both backends.

Change-Id: I0bb85de2bee7a5e2794a309f88d89e0abcbf5af8