Remove the dead code in Transport::ConnectChannels

webrtc/p2p/base/faketransportcontroller.h

 /*
  *  Copyright 2009 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 536 matching lines @@
     // Simulate the exchange of candidates.
     ConnectChannels_w();
     dest->ConnectChannels_w();
     for (auto& kv : transports()) {
       FakeTransport* transport = static_cast<FakeTransport*>(kv.second);
       transport->SetDestination(dest->GetTransport_w(kv.first));
     }
   }
 
   void ConnectChannels_w() {
+    TransportDescription faketransport_desc(
+        std::vector<std::string>(),
+        rtc::CreateRandomString(cricket::ICE_UFRAG_LENGTH),
+        rtc::CreateRandomString(cricket::ICE_PWD_LENGTH), cricket::ICEMODE_FULL,
+        cricket::CONNECTIONROLE_NONE, nullptr);
     for (auto& kv : transports()) {
       FakeTransport* transport = static_cast<FakeTransport*>(kv.second);
+      // Set local transport description for FakeTransport before connecting.
+      // Otherwise, the RTC_CHECK in Transport.ConnectChannel will fail.
+      if (!transport->local_description()) {
+        transport->SetLocalTransportDescription(faketransport_desc,
+                                                cricket::CA_OFFER, nullptr);
+      }
       transport->ConnectChannels();
       transport->MaybeStartGathering();
     }
   }
 
  private:
   bool fail_create_channel_;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_FAKETRANSPORTCONTROLLER_H_