tree 18c7de33a0efcfd7e130ec732853a131d333d2d1
parent ef9c8f94cf15109c3f43e5ed6936a225fb1c87a0
author QUICHE team <quiche-dev@google.com> 1556571481 -0700
committer Bence Béky <bnc@google.com> 1556578587 +0000

Add a new callback for probing retransmissions.

Whenever the connection needs to send probing retransmissions it calls the
session to decide what data to send.

gfe-relnote: n/a (probing retransmissions only used by Quartc)
PiperOrigin-RevId: 245817562
Change-Id: I2239c32ea4e2f6aa7dd6f733045ccc8fa0da4dc5