Remove NullReceiveStatistics

webrtc/video/video_send_stream_tests.cc

Index: webrtc/video/video_send_stream_tests.cc
diff --git a/webrtc/video/video_send_stream_tests.cc b/webrtc/video/video_send_stream_tests.cc
index 890413f177ce969150e5d1cdc17e63e209e3e43c..94b57e352710f0631da2dd25493328634e7ea955 100644
--- a/webrtc/video/video_send_stream_tests.cc
+++ b/webrtc/video/video_send_stream_tests.cc
@@ -757,8 +757,7 @@ void VideoSendStreamTest::TestNackRetransmission(
       if (++send_count_ == 3) {
         uint16_t nack_sequence_number = header.sequenceNumber - 1;
         nacked_sequence_number_ = nack_sequence_number;
-        NullReceiveStatistics null_stats;
-        RTCPSender rtcp_sender(false, Clock::GetRealTimeClock(), &null_stats,
+        RTCPSender rtcp_sender(false, Clock::GetRealTimeClock(), nullptr,
                                nullptr, nullptr, transport_adapter_.get());
 
         rtcp_sender.SetRTCPStatus(RtcpMode::kReducedSize);