Revert of Remove the deprecated EncodeInternal interface from AudioEncoder

webrtc/modules/audio_coding/acm2/audio_coding_module_impl.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 86 matching lines @@
   }
 }
 
 // Wraps a raw AudioEncoder pointer. The idea is that you can put one of these
 // in a unique_ptr, to protect the contained raw pointer from being deleted
 // when the unique_ptr expires. (This is of course a bad idea in general, but
 // backwards compatibility.)
 class RawAudioEncoderWrapper final : public AudioEncoder {
  public:
   RawAudioEncoderWrapper(AudioEncoder* enc) : enc_(enc) {}
+  size_t MaxEncodedBytes() const override { return enc_->MaxEncodedBytes(); }
   int SampleRateHz() const override { return enc_->SampleRateHz(); }
   size_t NumChannels() const override { return enc_->NumChannels(); }
   int RtpTimestampRateHz() const override { return enc_->RtpTimestampRateHz(); }
   size_t Num10MsFramesInNextPacket() const override {
     return enc_->Num10MsFramesInNextPacket();
   }
   size_t Max10MsFramesInAPacket() const override {
     return enc_->Max10MsFramesInAPacket();
   }
   int GetTargetBitrate() const override { return enc_->GetTargetBitrate(); }
   EncodedInfo EncodeImpl(uint32_t rtp_timestamp,
                          rtc::ArrayView<const int16_t> audio,
                          rtc::Buffer* encoded) override {
     return enc_->Encode(rtp_timestamp, audio, encoded);
   }
+  EncodedInfo EncodeInternal(uint32_t rtp_timestamp,
+                             rtc::ArrayView<const int16_t> audio,
+                             size_t max_encoded_bytes,
+                             uint8_t* encoded) override {
+    return enc_->EncodeInternal(rtp_timestamp, audio, max_encoded_bytes,
+                                encoded);
+  }
   void Reset() override { return enc_->Reset(); }
   bool SetFec(bool enable) override { return enc_->SetFec(enable); }
   bool SetDtx(bool enable) override { return enc_->SetDtx(enable); }
   bool SetApplication(Application application) override {
     return enc_->SetApplication(application);
   }
   void SetMaxPlaybackRate(int frequency_hz) override {
     return enc_->SetMaxPlaybackRate(frequency_hz);
   }
   void SetProjectedPacketLossRate(double fraction) override {
@@ skipping 796 matching lines @@
   return receiver_.LeastRequiredDelayMs();
 }
 
 void AudioCodingModuleImpl::GetDecodingCallStatistics(
       AudioDecodingCallStats* call_stats) const {
   receiver_.GetDecodingCallStatistics(call_stats);
 }
 
 }  // namespace acm2
 }  // namespace webrtc