tree bae25d090f8bb3282aba48c5a8cbff99fbf2189d
parent 2517302726fe806082cffdf32b6fbc9939f526fc
author bnc <bnc@google.com> 1586527811 -0700
committer Copybara-Service <copybara-worker@google.com> 1586527843 -0700

Return INTERNAL_ERROR if QuicErrorCodeToTransportErrorCode() is called with invalid
QuicErrorCode.  This should never happen, because QuicErrorCodeToTransportErrorCode is only called for serializing locally initiated CONNECTION_CLOSE frames, with locally specified QuicErrorCodes.

Note that previous return value {false, NO_IETF_QUIC_ERROR} is invalid, because
NO_IETF_QUIC_ERROR is a transport error code with value 0x0, but false means
application error code, and there is no defined application error code with this
value.  (HTTP/3's H3_NO_ERROR has value 0x100.)

gfe-relnote: Behavior change in IETF QUIC only, protected by gfe2_reloadable_flag_quic_enable_version_draft_25_v3 and gfe2_reloadable_flag_quic_enable_version_draft_27.
PiperOrigin-RevId: 305871445
Change-Id: I5509fb42ca8dd79e9963a8d6ef7c0ebba93c73b3