Enable use of MediaTransportInterface for video streams.

Bug: webrtc:9719
Change-Id: I8c6027b4b15ed641e42fd210b3ea87d121508a69
Reviewed-on: https://webrtc-review.googlesource.com/c/111751
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Reviewed-by: Peter Slatala <psla@webrtc.org>
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26219}
diff --git a/pc/rtpsenderreceiver_unittest.cc b/pc/rtpsenderreceiver_unittest.cc
index 037446f..ec1e949 100644
--- a/pc/rtpsenderreceiver_unittest.cc
+++ b/pc/rtpsenderreceiver_unittest.cc
@@ -108,8 +108,8 @@
         srtp_required, webrtc::CryptoOptions(), cricket::AudioOptions());
     video_channel_ = channel_manager_.CreateVideoChannel(
         &fake_call_, cricket::MediaConfig(), rtp_transport_.get(),
-        rtc::Thread::Current(), cricket::CN_VIDEO, srtp_required,
-        webrtc::CryptoOptions(), cricket::VideoOptions());
+        /*media_transport=*/nullptr, rtc::Thread::Current(), cricket::CN_VIDEO,
+        srtp_required, webrtc::CryptoOptions(), cricket::VideoOptions());
     voice_channel_->Enable(true);
     video_channel_->Enable(true);
     voice_media_channel_ = media_engine_->GetVoiceChannel(0);