Style updates to ProducerFec/FecReceiver.

webrtc/modules/rtp_rtcp/include/fec_receiver.h

 /*
  *  Copyright (c) 2013 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 15 matching lines @@
   size_t num_fec_packets;        // Number of received FEC packets.
   size_t num_recovered_packets;  // Number of recovered media packets using FEC.
 };
 
 class FecReceiver {
  public:
   static FecReceiver* Create(RtpData* callback);
 
   virtual ~FecReceiver() {}
 
+  // Takes a RED packet, strips the RED header, and adds the resulting
+  // "virtual" RTP packet(s) into the internal buffer.
   virtual int32_t AddReceivedRedPacket(const RTPHeader& rtp_header,
                                        const uint8_t* incoming_rtp_packet,
                                        size_t packet_length,
                                        uint8_t ulpfec_payload_type) = 0;
 
+  // Sends the received packets to the FEC and returns all packets
+  // (both original media and recovered) through the callback.
   virtual int32_t ProcessReceivedFec() = 0;
 
+  // Returns a counter describing the added and recovered packets.
   virtual FecPacketCounter GetPacketCounter() const = 0;
 };
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_RTP_RTCP_INCLUDE_FEC_RECEIVER_H_