In quic, update packet_size_ when first frame gets queued. protected by gfe2_reloadable_flag_quic_update_packet_size.
This allows up to mark multiple functions const.
PiperOrigin-RevId: 318090174
Change-Id: I5783ff1548360e4a262f44f15fc6966d6351e6d5
QUICHE (QUIC, Http/2, Etc) is Google‘s implementation of QUIC and related protocols. It powers Chromium as well as Google’s QUIC servers and some other projects.