Revert of Renaming AudioEncoder::SetTargetBitrate and SetProjectedPacketLossRate.

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 1beebd522dadf361c540b0a2aa6e0b5a450eb9e8..fe1b9de683c2678a75e8b462b972a87c73af67f8 100644
--- a/webrtc/modules/audio_coding/codecs/cng/audio_encoder_cng.cc
+++ b/webrtc/modules/audio_coding/codecs/cng/audio_encoder_cng.cc
@@ -179,20 +179,17 @@
   speech_encoder_->SetMaxPlaybackRate(frequency_hz);
 }
 
+void AudioEncoderCng::SetProjectedPacketLossRate(double fraction) {
+  speech_encoder_->SetProjectedPacketLossRate(fraction);
+}
+
+void AudioEncoderCng::SetTargetBitrate(int bits_per_second) {
+  speech_encoder_->SetTargetBitrate(bits_per_second);
+}
+
 rtc::ArrayView<std::unique_ptr<AudioEncoder>>
 AudioEncoderCng::ReclaimContainedEncoders() {
   return rtc::ArrayView<std::unique_ptr<AudioEncoder>>(&speech_encoder_, 1);
-}
-
-void AudioEncoderCng::OnReceivedUplinkPacketLossFraction(
-    float uplink_packet_loss_fraction) {
-  speech_encoder_->OnReceivedUplinkPacketLossFraction(
-      uplink_packet_loss_fraction);
-}
-
-void AudioEncoderCng::OnReceivedTargetAudioBitrate(
-    int target_audio_bitrate_bps) {
-  speech_encoder_->OnReceivedTargetAudioBitrate(target_audio_bitrate_bps);
 }
 
 AudioEncoder::EncodedInfo AudioEncoderCng::EncodePassive(