Turned AudioDecoderFactory into a RefCounted thing to use with scoped_refptr.

webrtc/modules/audio_coding/neteq/decoder_database.h

 /*
  *  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 51 matching lines @@
 
    private:
     const rtc::Optional<SdpAudioFormat> audio_format_;
     std::unique_ptr<AudioDecoder> decoder_;
   };
 
   // Maximum value for 8 bits, and an invalid RTP payload type (since it is
   // only 7 bits).
   static const uint8_t kRtpPayloadTypeError = 0xFF;
 
-  DecoderDatabase(std::unique_ptr<AudioDecoderFactory> decoder_factory);
+  DecoderDatabase(
+      const rtc::scoped_refptr<AudioDecoderFactory>& decoder_factory);
 
   virtual ~DecoderDatabase();
 
   // Returns true if the database is empty.
   virtual bool Empty() const;
 
   // Returns the number of decoders registered in the database.
   virtual int Size() const;
 
   // Resets the database, erasing all registered payload types, and deleting
@@ skipping 70 matching lines @@
   // registered in the database. Otherwise, returns kDecoderNotFound.
   virtual int CheckPayloadTypes(const PacketList& packet_list) const;
 
  private:
   typedef std::map<uint8_t, DecoderInfo> DecoderMap;
 
   DecoderMap decoders_;
   int active_decoder_type_;
   int active_cng_decoder_type_;
   std::unique_ptr<ComfortNoiseDecoder> active_cng_decoder_;
-  const std::unique_ptr<AudioDecoderFactory> decoder_factory_;
+  rtc::scoped_refptr<AudioDecoderFactory> decoder_factory_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(DecoderDatabase);
 };
 
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_AUDIO_CODING_NETEQ_DECODER_DATABASE_H_