Added a ParsePayload method to AudioDecoder.

webrtc/modules/audio_coding/neteq/packet_buffer.h

Index: webrtc/modules/audio_coding/neteq/packet_buffer.h
diff --git a/webrtc/modules/audio_coding/neteq/packet_buffer.h b/webrtc/modules/audio_coding/neteq/packet_buffer.h
index be2ecebaa379f871bcddd4da97fc3714cbdb43a3..a798704b7e3a63bd2db38e4edcec396693bbaf2a 100644
--- a/webrtc/modules/audio_coding/neteq/packet_buffer.h
+++ b/webrtc/modules/audio_coding/neteq/packet_buffer.h
@@ -115,8 +115,7 @@ class PacketBuffer {
 
   // Returns the number of samples in the buffer, including samples carried in
   // duplicate and redundant packets.
-  virtual size_t NumSamplesInBuffer(DecoderDatabase* decoder_database,
-                                    size_t last_decoded_length) const;
+  virtual size_t NumSamplesInBuffer(size_t last_decoded_length) const;
 
   virtual void BufferStat(int* num_packets, int* max_num_packets) const;