More reliable ALR detection

webrtc/modules/pacing/paced_sender.cc

Index: webrtc/modules/pacing/paced_sender.cc
diff --git a/webrtc/modules/pacing/paced_sender.cc b/webrtc/modules/pacing/paced_sender.cc
index d38154a2416e66db5ab42d81c68687a8afe8b9af..445d116ed709154d3dbe52c99d4a6db822f62cd1 100644
--- a/webrtc/modules/pacing/paced_sender.cc
+++ b/webrtc/modules/pacing/paced_sender.cc
@@ -451,7 +451,7 @@ void PacedSender::Process() {
   }
   if (is_probing && bytes_sent > 0)
     prober_->ProbeSent(clock_->TimeInMilliseconds(), bytes_sent);
-  alr_detector_->OnBytesSent(bytes_sent, elapsed_time_ms);
+  alr_detector_->OnBytesSent(bytes_sent, now_us / 1000);
 }
 
 bool PacedSender::SendPacket(const paced_sender::Packet& packet,