Modify PeerConnection for end-to-end QuicDataChannel usage

webrtc/api/peerconnection.h

Index: webrtc/api/peerconnection.h
diff --git a/webrtc/api/peerconnection.h b/webrtc/api/peerconnection.h
index b5577157a6573344ba7adb432b71f9ee377636d7..0cce81081f82e48a604417281ddcfb8ba4a37ef4 100644
--- a/webrtc/api/peerconnection.h
+++ b/webrtc/api/peerconnection.h
@@ -26,6 +26,10 @@
 #include "webrtc/api/webrtcsession.h"
 #include "webrtc/base/scoped_ptr.h"
 
+#ifdef HAVE_QUIC
+#include "webrtc/api/quicdatatransport.h"
+#endif  // HAVE_QUIC
+
 namespace webrtc {
 
 class MediaStreamObserver;
@@ -333,6 +337,9 @@ class PeerConnection : public PeerConnectionInterface,
   // webrtc::DataChannel should be opened.
   void OnDataChannelOpenMessage(const std::string& label,
                                 const InternalDataChannelInit& config);
+#ifdef HAVE_QUIC
+  void OnQuicTransportChannelCreated(cricket::QuicTransportChannel* channel);
+#endif  // HAVE_QUIC
 
   RtpSenderInterface* FindSenderById(const std::string& id);
 
@@ -387,6 +394,9 @@ class PeerConnection : public PeerConnectionInterface,
   std::map<std::string, rtc::scoped_refptr<DataChannel>> rtp_data_channels_;
   std::vector<rtc::scoped_refptr<DataChannel>> sctp_data_channels_;
   std::vector<rtc::scoped_refptr<DataChannel>> sctp_data_channels_to_free_;
+#ifdef HAVE_QUIC
+  std::unique_ptr<QuicDataTransport> quic_data_transport_;
+#endif  // HAVE_QUIC
 
   bool remote_peer_supports_msid_ = false;