tree cc98773d5a8c33b4efb4c194009135636d4c339a
parent d3e36a65a544d9a914c1a6957ddb4d39424dac9a
author haoyuewang <haoyuewang@google.com> 1633386097 -0700
committer Copybara-Service <copybara-worker@google.com> 1633386190 -0700

Make QuicCryptoStream::ExportKeyingMaterial pure virtual and implement it in subclasses.

For IETF QUIC, this method delegates to TlsHandshaker::ExportKeyingMaterialForLabel
For gQUIC, this method always return false. Code related to the existing gQUIC implementation is removed as it is not actively used anywhere.

PiperOrigin-RevId: 400827743