Update QuicTransportChannel to latest version of libquic (Chromium: f03d2c62)

webrtc/p2p/quic/quictransportchannel.h

 /*
  *  Copyright 2016 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 274 matching lines @@
   // random number generation.
   QuicConnectionHelper helper_;
   // This peer's role in the QUIC crypto handshake. SSL_CLIENT implies this peer
   // initiates the handshake, while SSL_SERVER implies the remote peer initiates
   // the handshake. This must be set before we start QUIC.
   rtc::Optional<rtc::SSLRole> ssl_role_;
   // Config for QUIC crypto client stream, used when |ssl_role_| is SSL_CLIENT.
   std::unique_ptr<net::QuicCryptoClientConfig> quic_crypto_client_config_;
   // Config for QUIC crypto server stream, used when |ssl_role_| is SSL_SERVER.
   std::unique_ptr<net::QuicCryptoServerConfig> quic_crypto_server_config_;
+  // Used by QUIC crypto server stream to track most recently compressed certs.
+  std::unique_ptr<net::QuicCompressedCertsCache> quic_compressed_certs_cache_;
   // This peer's certificate.
   rtc::scoped_refptr<rtc::RTCCertificate> local_certificate_;
   // Fingerprint of the remote peer. This must be set before we start QUIC.
   rtc::Optional<RemoteFingerprint> remote_fingerprint_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(QuicTransportChannel);
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_QUIC_QUICTRANSPORTCHANNEL_H_