tree 7c4f189c77f50e4a07bffc430bc30328688dd0a3
parent 4c664c51b53d7c12991e7157bc5a5728bdc51864
author fkastenholz <fkastenholz@google.com> 1565013260 -0700
committer Copybara-Service <copybara-worker@google.com> 1565021366 -0700

Generate and parse extended Google QUIC Error Code in IETF Conn. Close frames.

Add code to prepend "<QuicErrorCode>:" to the error string in IETF QUIC
Connection Close Frames and to detect/parse the string back out and set QuicConnectionCloseFrame::extracted_error_code.

Google QUIC Error Codes are richer than standardized IETF QUIC Error Codes. This CL includes the Google QUIC Error Code in the error details string, allowing
the richer information to be retained when IETF QUIC is used. This is important since it lets us continue to use the current varz's for operational diagnosis/etc.

gfe-relnote: N/A IETF QUIC/v99 code only.
PiperOrigin-RevId: 261676212
Change-Id: Icf9287eb59224bd8bd5e6620827c1ddba67872b3