Rent-A-Codec: Reference count the shared iSAC bandwidth estimation state

webrtc/modules/audio_coding/codecs/isac/audio_decoder_isac_t_impl.h

 /*
  *  Copyright (c) 2015 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.
  */
 
 #ifndef WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_AUDIO_DECODER_ISAC_T_IMPL_H_
 #define WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_AUDIO_DECODER_ISAC_T_IMPL_H_
 
 #include "webrtc/modules/audio_coding/codecs/isac/main/include/audio_decoder_isac.h"
 
 #include "webrtc/base/checks.h"
 
 namespace webrtc {
 
 template <typename T>
 AudioDecoderIsacT<T>::AudioDecoderIsacT()
     : AudioDecoderIsacT(nullptr) {}
 
 template <typename T>
-AudioDecoderIsacT<T>::AudioDecoderIsacT(LockedIsacBandwidthInfo* bwinfo)
+AudioDecoderIsacT<T>::AudioDecoderIsacT(
+    const rtc::scoped_refptr<LockedIsacBandwidthInfo>& bwinfo)
     : bwinfo_(bwinfo), decoder_sample_rate_hz_(-1) {
   RTC_CHECK_EQ(0, T::Create(&isac_state_));
   T::DecoderInit(isac_state_);
   if (bwinfo_) {
     IsacBandwidthInfo bi;
     T::GetBandwidthInfo(isac_state_, &bi);
     bwinfo_->Set(bi);
   }
 }
 
@@ skipping 59 matching lines @@
 }
 
 template <typename T>
 size_t AudioDecoderIsacT<T>::Channels() const {
   return 1;
 }
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_CODING_CODECS_ISAC_AUDIO_DECODER_ISAC_T_IMPL_H_