Modified PeerConnection and WebRtcSession for end-to-end QuicDataChannel usage.

webrtc/api/quicdatatransport.h

Index: webrtc/api/quicdatatransport.h
diff --git a/webrtc/api/quicdatatransport.h b/webrtc/api/quicdatatransport.h
index 96fe2a0ad73ebf2c56bdea41090ca53604f3df1f..b4e57cc15f75dabafad964afdf3720b91610d890 100644
--- a/webrtc/api/quicdatatransport.h
+++ b/webrtc/api/quicdatatransport.h
@@ -19,6 +19,7 @@
 #include "webrtc/base/scoped_ref_ptr.h"
 #include "webrtc/base/sigslot.h"
 #include "webrtc/base/thread.h"
+#include "webrtc/p2p/base/transportcontroller.h"
 
 namespace cricket {
 class QuicTransportChannel;
@@ -38,9 +39,21 @@ class QuicDataTransport : public sigslot::has_slots<> {
  public:
   QuicDataTransport(rtc::Thread* signaling_thread,
                     rtc::Thread* worker_thread,
-                    rtc::Thread* network_thread);
+                    rtc::Thread* network_thread,
+                    cricket::TransportController* transport_controller);
   ~QuicDataTransport() override;
 
+  // The QuicDataTransport acts like a BaseChannel with these functions.
+  bool SetTransport(const std::string& transport_name);
+  const std::string& transport_name() const { return transport_name_; }
+  void set_transport_name(const std::string& transport_name) {
+    transport_name_ = transport_name;
+  }
+  const std::string& content_name() const { return content_name_; }
+  void set_content_name(const std::string& content_name) {
+    content_name_ = content_name;
+  }
+
   // Sets the QUIC transport channel for the QuicDataChannels and the
   // QuicDataTransport. Returns false if a different QUIC transport channel is
   // already set, the QUIC transport channel cannot be set for any of the
@@ -74,6 +87,10 @@ class QuicDataTransport : public sigslot::has_slots<> {
                       const char* data,
                       size_t len);
 
+  cricket::QuicTransportChannel* CreateTransportChannel(
+      const std::string& transport_name);
+  void DestroyTransportChannels();
+
   // Map of data channel ID => QUIC data channel values.
   std::unordered_map<int, rtc::scoped_refptr<QuicDataChannel>>
       data_channel_by_id_;
@@ -86,6 +103,11 @@ class QuicDataTransport : public sigslot::has_slots<> {
   rtc::Thread* const signaling_thread_;
   rtc::Thread* const worker_thread_;
   rtc::Thread* const network_thread_;
+
+  std::string content_name_;
+  // Transport related members that should be accessed from network thread.
+  cricket::TransportController* transport_controller_;
+  std::string transport_name_;
 };
 
 }  // namespace webrtc