Allow ANA to receive RPLR (recoverable packet loss rate) indications

webrtc/modules/audio_coding/codecs/cng/audio_encoder_cng.cc

Index: webrtc/modules/audio_coding/codecs/cng/audio_encoder_cng.cc
diff --git a/webrtc/modules/audio_coding/codecs/cng/audio_encoder_cng.cc b/webrtc/modules/audio_coding/codecs/cng/audio_encoder_cng.cc
index 564705df5af5dbf570103c3c62a37ce82b92822f..2c8309d653310526c45f3b7718804c798fe8736d 100644
--- a/webrtc/modules/audio_coding/codecs/cng/audio_encoder_cng.cc
+++ b/webrtc/modules/audio_coding/codecs/cng/audio_encoder_cng.cc
@@ -190,6 +190,12 @@ void AudioEncoderCng::OnReceivedUplinkPacketLossFraction(
       uplink_packet_loss_fraction);
 }
 
+void AudioEncoderCng::OnReceivedUplinkRecoverablePacketLossFraction(
+    const rtc::Optional<float>& uplink_recoverable_packet_loss_fraction) {
+  speech_encoder_->OnReceivedUplinkRecoverablePacketLossFraction(
+      uplink_recoverable_packet_loss_fraction);
+}
+
 void AudioEncoderCng::OnReceivedUplinkBandwidth(
     int target_audio_bitrate_bps,
     rtc::Optional<int64_t> probing_interval_ms) {