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..ee8c3789db1e9b04f43dab987071dfd6a4857a0d 100644
--- a/webrtc/modules/audio_coding/neteq/packet_buffer.h
+++ b/webrtc/modules/audio_coding/neteq/packet_buffer.h
@@ -109,14 +109,16 @@ class PacketBuffer {
   // Discards all packets that are (strictly) older than timestamp_limit.
   virtual int DiscardAllOldPackets(uint32_t timestamp_limit);
 
+  // Removes all packets with a specific payload type from the buffer.
+  virtual void DiscardPacketsWithPayloadType(uint8_t payload_type);
+
   // Returns the number of packets in the buffer, including duplicates and
   // redundant packets.
   virtual size_t NumPacketsInBuffer() const;
 
   // 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;