Revert of Renaming AudioEncoder::SetTargetBitrate and SetProjectedPacketLossRate.

webrtc/modules/audio_coding/codecs/red/audio_encoder_copy_red.cc

Index: webrtc/modules/audio_coding/codecs/red/audio_encoder_copy_red.cc
diff --git a/webrtc/modules/audio_coding/codecs/red/audio_encoder_copy_red.cc b/webrtc/modules/audio_coding/codecs/red/audio_encoder_copy_red.cc
index 51b706490b020eefbbc43d455118c5170fef9ec7..07db78c911f47af743785437a7b3f7b32fb0b321 100644
--- a/webrtc/modules/audio_coding/codecs/red/audio_encoder_copy_red.cc
+++ b/webrtc/modules/audio_coding/codecs/red/audio_encoder_copy_red.cc
@@ -115,20 +115,17 @@
   speech_encoder_->SetMaxPlaybackRate(frequency_hz);
 }
 
+void AudioEncoderCopyRed::SetProjectedPacketLossRate(double fraction) {
+  speech_encoder_->SetProjectedPacketLossRate(fraction);
+}
+
+void AudioEncoderCopyRed::SetTargetBitrate(int bits_per_second) {
+  speech_encoder_->SetTargetBitrate(bits_per_second);
+}
+
 rtc::ArrayView<std::unique_ptr<AudioEncoder>>
 AudioEncoderCopyRed::ReclaimContainedEncoders() {
   return rtc::ArrayView<std::unique_ptr<AudioEncoder>>(&speech_encoder_, 1);
 }
 
-void AudioEncoderCopyRed::OnReceivedUplinkPacketLossFraction(
-    float uplink_packet_loss_fraction) {
-  speech_encoder_->OnReceivedUplinkPacketLossFraction(
-      uplink_packet_loss_fraction);
-}
-
-void AudioEncoderCopyRed::OnReceivedTargetAudioBitrate(
-    int target_audio_bitrate_bps) {
-  speech_encoder_->OnReceivedTargetAudioBitrate(target_audio_bitrate_bps);
-}
-
 }  // namespace webrtc