Do not use union in QuicErrorCodeToIetfMapping. Also do not end public member names with underscore.
gfe-relnote: n/a, refactor only, no functional change.
PiperOrigin-RevId: 305801835
Change-Id: I54133a221239075b203892db7f9686d442f5b7c5
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.