Allow TransportController to create a QuicTransportChannel

webrtc/p2p/quic/quictransportchannel.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 255 matching lines @@
   bool CreateQuicSession();
   // Creates the crypto stream and initializes the handshake.
   bool StartQuicHandshake();
   // Sets the QuicTransportChannel connectivity state.
   void set_quic_state(QuicTransportState state);
 
   // Everything should occur on this thread.
   rtc::Thread* worker_thread_;
   // Underlying channel which is responsible for connecting with the remote peer
   // and sending/receiving packets across the network.
-  TransportChannelImpl* const channel_;
+  std::unique_ptr<TransportChannelImpl> channel_;
   // Connectivity state of QuicTransportChannel.
   QuicTransportState quic_state_ = QUIC_TRANSPORT_NEW;
   // QUIC session which establishes the crypto handshake and converts data
   // to/from QUIC packets.
   std::unique_ptr<QuicSession> quic_;
   // Non-crypto config for |quic_|.
   net::QuicConfig config_;
   // Helper for net::QuicConnection that provides timing and
   // random number generation.
   QuicConnectionHelper helper_;
@@ skipping 11 matching lines @@
   rtc::scoped_refptr<rtc::RTCCertificate> local_certificate_;
   // Fingerprint of the remote peer. This must be set before we start QUIC.
   rtc::Optional<RemoteFingerprint> remote_fingerprint_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(QuicTransportChannel);
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_QUIC_QUICTRANSPORTCHANNEL_H_