Revert of Removing #defines previously used for building without BoringSSL/OpenSSL.

webrtc/api/test/peerconnectiontestwrapper.cc

 /*
  *  Copyright 2013 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 58 matching lines @@
   }
 
   peer_connection_factory_ = webrtc::CreatePeerConnectionFactory(
       network_thread_, worker_thread_, rtc::Thread::Current(),
       fake_audio_capture_module_, NULL, NULL);
   if (!peer_connection_factory_) {
     return false;
   }
 
   std::unique_ptr<rtc::RTCCertificateGeneratorInterface> cert_generator(
-      new FakeRTCCertificateGenerator());
+      rtc::SSLStreamAdapter::HaveDtlsSrtp() ? new FakeRTCCertificateGenerator()
+                                            : nullptr);
   peer_connection_ = peer_connection_factory_->CreatePeerConnection(
       config, constraints, std::move(port_allocator), std::move(cert_generator),
       this);
 
   return peer_connection_.get() != NULL;
 }
 
 rtc::scoped_refptr<webrtc::DataChannelInterface>
 PeerConnectionTestWrapper::CreateDataChannel(
     const std::string& label,
@@ skipping 181 matching lines @@
         peer_connection_factory_->CreateVideoSource(
             new webrtc::FakePeriodicVideoCapturer(), &constraints);
     std::string videotrack_label = label + kVideoTrackLabelBase;
     rtc::scoped_refptr<webrtc::VideoTrackInterface> video_track(
         peer_connection_factory_->CreateVideoTrack(videotrack_label, source));
 
     stream->AddTrack(video_track);
   }
   return stream;
 }