tree eec81c356e1db5cd587b78c8475555e54211860f
parent 1ad3f0669eada80f7a2f2c72249c0bb570575f8e
author haoyuewang <haoyuewang@google.com> 1618343531 -0700
committer Copybara-Service <copybara-worker@google.com> 1618343562 -0700

Group sending path response and reverse path challenge closer on the server side.

The advantages are:
(1) The outermost ScopedPeerAddressContext can be instantiated after alternative_path_ has been created. This makes it straightforward to find a connection ID for this scoped context.
(2) Ideally, path response and reverse path challenge is better sent at the end of packet processing. But that is a more complex change. The current change allows progress made in usage of connection ID without that.

Protected by FLAGS_quic_reloadable_flag_quic_group_path_response_and_challenge_sending_closer.

PiperOrigin-RevId: 368275656
Change-Id: I1735ff20babd2f190ba27ea7037e2be9317a6f3a