Add probe logging to RtcEventLog.

webrtc/modules/rtp_rtcp/source/rtp_sender.h

 /*
  *  Copyright (c) 2012 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 215 matching lines @@
                             int probe_cluster_id);
 
   // Return the number of bytes sent.  Note that both of these functions may
   // return a larger value that their argument.
   size_t TrySendRedundantPayloads(size_t bytes, int probe_cluster_id);
 
   std::unique_ptr<RtpPacketToSend> BuildRtxPacket(
       const RtpPacketToSend& packet);
 
   bool SendPacketToNetwork(const RtpPacketToSend& packet,
-                           const PacketOptions& options);
+                           const PacketOptions& options,
+                           int probe_cluster_id);
 
   void UpdateDelayStatistics(int64_t capture_time_ms, int64_t now_ms);
   void UpdateOnSendPacket(int packet_id,
                           int64_t capture_time_ms,
                           uint32_t ssrc);
 
   bool UpdateTransportSequenceNumber(RtpPacketToSend* packet,
                                      int* packet_id) const;
 
   void UpdateRtpStats(const RtpPacketToSend& packet,
@@ skipping 81 matching lines @@
   OverheadObserver* overhead_observer_;
 
   const bool send_side_bwe_with_overhead_;
 
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(RTPSender);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_RTP_RTCP_SOURCE_RTP_SENDER_H_