In quic, do not arm pto timer with no packets in flight if handshake packet gets received by peer. affecting client only. not protected.
PiperOrigin-RevId: 321619242
Change-Id: If85c601a6d033d45658546c3b6ac87b8e908367f
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.