tree 397ed5b53bd5a3e74fde6f8dd4ffca81788cc3c2
parent b7e5bd6dd93e788484a6f230e750034e462a94d4
author Dmitry Grinberg <dmitrygr@google.com> 1545335491 -0800
committer Dmitry Grinberg <dmitrygr@google.com> 1545345235 -0800

gatt: proactively disconnect L2C when a gatt conn is disused

Track for each conn whether a remote side ever used it as a server, and
how many local clients currently refer to it. When both are zero, close
it. Does this mean that we can never close one ourselves if the remote
has ever made server requests to it? Yes, this is per spec.

BUG=b:74813838
TEST=test app unbroken, more WIP

Change-Id: I49979aefa52c5da80095f4975222c4a564dcae3c