Revert of Remove GetTransport() from TransportChannelImpl

webrtc/p2p/base/dtlstransport.h

 /*
  *  Copyright 2012 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 181 matching lines @@
       remote_fingerprint_.reset(new rtc::SSLFingerprint(
           "", NULL, 0));
     }
 
     // Now run the negotiation for the base class.
     return Base::NegotiateTransportDescription(local_role, error_desc);
   }
 
   DtlsTransportChannelWrapper* CreateTransportChannel(int component) override {
     DtlsTransportChannelWrapper* channel = new DtlsTransportChannelWrapper(
-        Base::CreateTransportChannel(component));
+        this, Base::CreateTransportChannel(component));
     channel->SetSslMaxProtocolVersion(ssl_max_version_);
     return channel;
   }
 
   void DestroyTransportChannel(TransportChannelImpl* channel) override {
     // Kind of ugly, but this lets us do the exact inverse of the create.
     DtlsTransportChannelWrapper* dtls_channel =
         static_cast<DtlsTransportChannelWrapper*>(channel);
     TransportChannelImpl* base_channel = dtls_channel->channel();
     delete dtls_channel;
@@ skipping 28 matching lines @@
 
   rtc::scoped_refptr<rtc::RTCCertificate> certificate_;
   rtc::SSLRole secure_role_;
   rtc::SSLProtocolVersion ssl_max_version_;
   rtc::scoped_ptr<rtc::SSLFingerprint> remote_fingerprint_;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_DTLSTRANSPORT_H_