Revert 226264 "Be able to build cast_unittest and related target..."

trunk/src/media/cast/audio_receiver/audio_decoder.h

Index: trunk/src/media/cast/audio_receiver/audio_decoder.h
===================================================================
--- trunk/src/media/cast/audio_receiver/audio_decoder.h	(revision 226266)
+++ trunk/src/media/cast/audio_receiver/audio_decoder.h	(working copy)
@@ -25,6 +25,8 @@
   explicit AudioDecoder(scoped_refptr<CastThread> cast_thread,
                         const AudioReceiverConfig& audio_config);
 
+  virtual ~AudioDecoder();
+
   // Extract a raw audio frame from the decoder.
   // Set the number of desired 10ms blocks and frequency.
   bool GetRawAudioFrame(int number_of_10ms_blocks,
@@ -37,13 +39,9 @@
                                int payload_size,
                                const RtpCastHeader& rtp_header);
 
- protected:
-  virtual ~AudioDecoder();
-
  private:
-  friend class base::RefCountedThreadSafe<AudioDecoder>;
-
-  scoped_ptr<webrtc::AudioCodingModule> audio_decoder_;
+  // Can't use scoped_ptr due to protected constructor within webrtc.
+  webrtc::AudioCodingModule* audio_decoder_;
   bool have_received_packets_;
   scoped_refptr<CastThread> cast_thread_;
 
@@ -53,4 +51,4 @@
 }  // namespace cast
 }  // namespace media
 
-#endif  // MEDIA_CAST_AUDIO_RECEIVER_AUDIO_DECODER_H_
+#endif  // MEDIA_CAST_AUDIO_RECEIVER_AUDIO_DECODER_H_