Add AlrDetector

webrtc/modules/remote_bitrate_estimator/test/packet_sender.cc

Index: webrtc/modules/remote_bitrate_estimator/test/packet_sender.cc
diff --git a/webrtc/modules/remote_bitrate_estimator/test/packet_sender.cc b/webrtc/modules/remote_bitrate_estimator/test/packet_sender.cc
index 06fbc6e91323c162680b77e31bbfb8bd57112e3f..47e7ba8b26e6f7ee31bae2af4fe372d1b5639db6 100644
--- a/webrtc/modules/remote_bitrate_estimator/test/packet_sender.cc
+++ b/webrtc/modules/remote_bitrate_estimator/test/packet_sender.cc
@@ -156,8 +156,7 @@ uint32_t VideoSender::TargetBitrateKbps() {
 PacedVideoSender::PacedVideoSender(PacketProcessorListener* listener,
                                    VideoSource* source,
                                    BandwidthEstimatorType estimator)
-    : VideoSender(listener, source, estimator),
-      pacer_(&clock_, this) {
+    : VideoSender(listener, source, estimator), pacer_(&clock_, this, nullptr) {
   modules_.push_back(&pacer_);
   pacer_.SetEstimatedBitrate(source->bits_per_second());
 }