tree 51c6f66380fdfc0a4ce23d88af2afede02c0a089
parent 36d9a1fbff6e0f8665a1c60c09e19aa38380ae85
author vasilvv <vasilvv@google.com> 1632752646 -0700
committer Copybara-Service <copybara-worker@google.com> 1632752711 -0700

In QuicSession, check if the visitor_ is not nullptr before calling it.

According to the QuicSession API contract, the session visitor may be nullptr; while we typically only use this for the clients, in some unit tests, this also applies to the server.

PiperOrigin-RevId: 399184256