tree aa749eb767373db26c33c0bdfb999f887088122d
parent 032d195285b11213821ed695ecadce51238d9bb8
author Shawn Pearce <sop@google.com> 1487882058 -0800
committer Shawn Pearce <sop@google.com> 1492904884 -0700

Convert ProjectControl visibility checks to PermissionBackend

Gerrit core is hiding methods on ProjectControl to transition to
PermissionBackend.  Replace use of isReadable and allRefsAreVisible,
checking ACCESS and READ permission instead.

Change-Id: Ib426d14d6a535cbe2ebcfba456bc2cc094311ed7