Revert of Unify rtcp packet setters

webrtc/modules/rtp_rtcp/source/rtcp_packet/bye.h

 /*
  *  Copyright (c) 2015 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 14 matching lines @@
 class Bye : public RtcpPacket {
  public:
   static const uint8_t kPacketType = 203;
 
   Bye();
   ~Bye() override {}
 
   // Parse assumes header is already parsed and validated.
   bool Parse(const CommonHeader& packet);
 
-  void SetSenderSsrc(uint32_t ssrc) { sender_ssrc_ = ssrc; }
-  bool SetCsrcs(std::vector<uint32_t> csrcs);
-  void SetReason(std::string reason);
+  void From(uint32_t ssrc) { sender_ssrc_ = ssrc; }
+  bool WithCsrc(uint32_t csrc);
+  void WithReason(const std::string& reason);
 
   uint32_t sender_ssrc() const { return sender_ssrc_; }
   const std::vector<uint32_t>& csrcs() const { return csrcs_; }
   const std::string& reason() const { return reason_; }
 
  protected:
   bool Create(uint8_t* packet,
               size_t* index,
               size_t max_length,
               RtcpPacket::PacketReadyCallback* callback) const override;
 
  private:
   static const int kMaxNumberOfCsrcs = 0x1f - 1;  // First item is sender SSRC.
 
   size_t BlockLength() const override;
 
   uint32_t sender_ssrc_;
   std::vector<uint32_t> csrcs_;
   std::string reason_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(Bye);
 };
 
 }  // namespace rtcp
 }  // namespace webrtc
 #endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTCP_PACKET_BYE_H_