tree 8896b46b8c646dfebb5468af5d35a6f66a2159f8
parent afd8daad85b215c3f1c5e838d95b382da8ed0e7f
author fayang <fayang@google.com> 1591813011 -0700
committer Copybara-Service <copybara-worker@google.com> 1591813042 -0700

In quic, stop blackhole detection if timer based loss detection removes all packets from in flight but no retransmission can be sent (e.g., write blocked, message frame, etc). protected by existing gfe2_reloadable_flag_quic_default_enable_5rto_blackhole_detection2.

Also add QUIC_BUGs to make sure there are bytes in flight when arming blackhole detection and when the blackhole is detected.

PiperOrigin-RevId: 315728450
Change-Id: I017bc77a95b88da460676de21cc40199d4b129c8