Allow TransportController to create a QuicTransportChannel

webrtc/p2p/base/transportcontroller.h

 /*
  *  Copyright 2015 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 73 matching lines @@
   // count and returns an existing channel.
   virtual TransportChannel* CreateTransportChannel_w(
       const std::string& transport_name,
       int component);
 
   // Decrements a channel's reference count, and destroys the channel if
   // nothing is referencing it.
   virtual void DestroyTransportChannel_w(const std::string& transport_name,
                                          int component);
 
+  void use_quic() { quic_ = true; }
+  bool quic() const { return quic_; }
+
   // All of these signals are fired on the signalling thread.
 
   // If any transport failed => failed,
   // Else if all completed => completed,
   // Else if all connected => connected,
   // Else => connecting
   sigslot::signal1<IceConnectionState> SignalConnectionState;
 
   // Receiving if any transport is receiving
   sigslot::signal1<bool> SignalReceiving;
@@ skipping 111 matching lines @@
   IceGatheringState gathering_state_ = kIceGatheringNew;
 
   // TODO(deadbeef): Move the fields below down to the transports themselves
   IceConfig ice_config_;
   IceRole ice_role_ = ICEROLE_CONTROLLING;
   // Flag which will be set to true after the first role switch
   bool ice_role_switch_ = false;
   uint64_t ice_tiebreaker_ = rtc::CreateRandomId64();
   rtc::scoped_refptr<rtc::RTCCertificate> certificate_;
   rtc::AsyncInvoker invoker_;
+  // True if QUIC is used instead of DTLS.
+  bool quic_ = false;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_TRANSPORTCONTROLLER_H_