Add QuicDataChannel and QuicDataTransport classes

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 33 matching lines @@
     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,
+                          const std::string& error_details,
                           net::ConnectionCloseSource source) override;
 
   // Exports keying material for SRTP.
   bool ExportKeyingMaterial(base::StringPiece label,
                             base::StringPiece context,
                             size_t result_len,
-                            string* result);
+                            std::string* result);
 
   // Decrypts an incoming QUIC packet to a data stream.
   bool OnReadPacket(const char* data, size_t data_len);
 
   // Called when peers have established forward-secure encryption
   sigslot::signal0<> SignalHandshakeComplete;
   // Called when connection closes locally, or remotely by peer.
   sigslot::signal2<net::QuicErrorCode, bool> SignalConnectionClosed;
   // Called when an incoming QUIC stream is created so we can process data
   // from it by registering a listener to
   // ReliableQuicStream::SignalDataReceived.
   sigslot::signal1<ReliableQuicStream*> SignalIncomingStream;
 
  protected:
   // Sets the QUIC crypto stream and takes ownership of it.
   void SetCryptoStream(net::QuicCryptoStream* crypto_stream);
 
   // QuicSession override.
   ReliableQuicStream* CreateIncomingDynamicStream(
       net::QuicStreamId id) override;
 
   virtual ReliableQuicStream* CreateDataStream(net::QuicStreamId id);
 
  private:
   rtc::scoped_ptr<net::QuicCryptoStream> crypto_stream_;
+  net::QuicClock clock_;  // For recording packet receipt time
 
   RTC_DISALLOW_COPY_AND_ASSIGN(QuicSession);
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_QUIC_QUICSESSION_H_