Add a simple integration test for QuicTransport.
gfe-relnote: n/a (not used in production)
PiperOrigin-RevId: 276340873
Change-Id: Ie2caa7e6d5389f9170d79f0b2e471c36dbfbcbc2
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.