Reland of Unify rtcp packet setters

webrtc/modules/rtp_rtcp/source/rtcp_packet.h

 /*
  *  Copyright (c) 2014 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.
  *
  */
 
 #ifndef WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_H_
 #define WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_H_
 
 #include "webrtc/base/buffer.h"
 #include "webrtc/modules/rtp_rtcp/source/rtcp_utility.h"
 
 namespace webrtc {
 namespace rtcp {
 // Class for building RTCP packets.
 //
 //  Example:
 //  ReportBlock report_block;
-//  report_block.To(234);
-//  report_block.WithFractionLost(10);
+//  report_block.SetMediaSsrc(234);
+//  report_block.SetFractionLost(10);
 //
 //  ReceiverReport rr;
-//  rr.From(123);
-//  rr.WithReportBlock(report_block);
+//  rr.SetSenderSsrc(123);
+//  rr.AddReportBlock(report_block);
 //
 //  Fir fir;
-//  fir.From(123);
-//  fir.WithRequestTo(234, 56);
+//  fir.SetSenderSsrc(123);
+//  fir.AddRequestTo(234, 56);
 //
 //  size_t length = 0;                     // Builds an intra frame request
 //  uint8_t packet[kPacketSize];           // with sequence number 56.
 //  fir.Build(packet, &length, kPacketSize);
 //
 //  rtc::Buffer packet = fir.Build();      // Returns a RawPacket holding
 //                                         // the built rtcp packet.
 //
 //  CompoundPacket compound;               // Builds a compound RTCP packet with
 //  compound.Append(&rr);                  // a receiver report, report block
@@ skipping 54 matching lines @@
                     size_t* index,
                     RtcpPacket::PacketReadyCallback* callback) const;
 
   size_t HeaderLength() const;
 
   static const size_t kHeaderLength = 4;
 };
 }  // namespace rtcp
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_H_