tree ecb73c8788b2d145f92be6506f7486de18602781
parent d46498cf511772563a0fc54186a3e43adbefcac4
author Marie Janssen 💖 <jamuraa@google.com> 1558384630 +0000
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1558384630 +0000

[bt][fidl] ConnectL2Cap returns nullable socket

Sockets with ZX_INVALID_HANDLE can't be passed through FIDL, so there is
no way to send a non-handle if the channel opening fails somehow.  Make
the socket return nullable.

Previously this would crash the FIDL connection as the profile server
delivers an invalid socket in this case.

BT-659

Test: new integration test: connect_unknown_peer
  fx run-test bluetooth-tests -t bt-integration-tests

Change-Id: I4f9114c1cd43f0b3a703573b74d934f3274bf5d6