Only set certificate on DTLS transport if fingerprint is found in SDP.

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 599 matching lines @@
   }
 
   // Simulate the exchange of transport descriptions, and the gathering and
   // exchange of ICE candidates.
   void Connect(FakeTransportController* dest) {
     for (const std::string& transport_name : transport_names_for_testing()) {
       TransportDescription local_desc(
           std::vector<std::string>(),
           rtc::CreateRandomString(cricket::ICE_UFRAG_LENGTH),
           rtc::CreateRandomString(cricket::ICE_PWD_LENGTH),
-          cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_NONE, nullptr);
+          cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_NONE,
+          certificate_for_testing()
+              ? rtc::SSLFingerprint::CreateFromCertificate(
+                    certificate_for_testing())
+              : nullptr);
       TransportDescription remote_desc(
           std::vector<std::string>(),
           rtc::CreateRandomString(cricket::ICE_UFRAG_LENGTH),
           rtc::CreateRandomString(cricket::ICE_PWD_LENGTH),
-          cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_NONE, nullptr);
+          cricket::ICEMODE_FULL, cricket::CONNECTIONROLE_NONE,
+          dest->certificate_for_testing()
+              ? rtc::SSLFingerprint::CreateFromCertificate(
+                    dest->certificate_for_testing())
+              : nullptr);
       std::string err;
       SetLocalTransportDescription(transport_name, local_desc,
                                    cricket::CA_OFFER, &err);
       dest->SetRemoteTransportDescription(transport_name, local_desc,
                                           cricket::CA_OFFER, &err);
       dest->SetLocalTransportDescription(transport_name, remote_desc,
                                          cricket::CA_ANSWER, &err);
       SetRemoteTransportDescription(transport_name, remote_desc,
                                     cricket::CA_ANSWER, &err);
     }
@@ skipping 49 matching lines @@
         bool asymmetric = false;
         local->SetDestination(remote, asymmetric);
       }
     }
   }
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_P2P_BASE_FAKETRANSPORTCONTROLLER_H_