tree bea6818bb5b42654842902f165560d28ebf27cf3
parent 3e39c7cbd2bd51610eddabaea3e3e8731ddc5171
author rch <rch@google.com> 1701829971 -0800
committer Copybara-Service <copybara-worker@google.com> 1701830013 -0800

Allow QUIC control frames to be sent while a packet is being processed.

Removes the restriction added in cr/574987377. Instead, changes the
behavior of QuicPacketCreator::SetMaxPacketLength() to allow it
to be called while frames are queued. In this case, the new max packet
length is applied to the *next* packet.

Note: uses a restart flag instead of a reloadable flag to avoid needing to
coordinate the change in QuicSession with the change in QuicPacketCreator.

Protected by FLAGS_quic_restart_flag_quic_allow_control_frames_while_procesing.

PiperOrigin-RevId: 588249854