Modify PeerConnection for end-to-end QuicDataChannel usage

webrtc/p2p/quic/quicsession.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 30 matching lines @@
 
   // QuicSession overrides.
   net::QuicCryptoStream* GetCryptoStream() override {
     return crypto_stream_.get();
   }
   ReliableQuicStream* CreateOutgoingDynamicStream(
       net::SpdyPriority priority) override;
 
   // QuicSession optional overrides.
   void OnCryptoHandshakeEvent(CryptoHandshakeEvent event) override;
-
-  // QuicConnectionVisitorInterface overrides.
   void OnConnectionClosed(net::QuicErrorCode error,
                           net::ConnectionCloseSource source) override;
 
   // Exports keying material for SRTP.
   bool ExportKeyingMaterial(base::StringPiece label,
                             base::StringPiece context,
                             size_t result_len,
                             string* result);
 
   // Decrypts an incoming QUIC packet to a data stream.
@@ skipping 20 matching lines @@
 
  private:
   rtc::scoped_ptr<net::QuicCryptoStream> crypto_stream_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(QuicSession);
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_QUIC_QUICSESSION_H_