Replace first_packet_sent_ms_ in Call.

webrtc/modules/congestion_controller/include/send_side_congestion_controller.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 70 matching lines @@
   // Resets the BWE state. Note the first argument is the bitrate_bps.
   virtual void OnNetworkRouteChanged(const rtc::NetworkRoute& network_route,
                                      int bitrate_bps,
                                      int min_bitrate_bps,
                                      int max_bitrate_bps);
   virtual void SignalNetworkState(NetworkState state);
   virtual void SetTransportOverhead(size_t transport_overhead_bytes_per_packet);
 
   virtual BitrateController* GetBitrateController() const;
   virtual int64_t GetPacerQueuingDelayMs() const;
+  virtual int64_t GetFirstPacketTimeMs() const;
   // TODO(nisse): Delete this accessor function. The pacer should be
   // internal to the congestion controller.
   virtual PacedSender* pacer() { return pacer_.get(); }
   virtual TransportFeedbackObserver* GetTransportFeedbackObserver() {
     return this;
   }
   RateLimiter* GetRetransmissionRateLimiter();
   void EnablePeriodicAlrProbing(bool enable);
 
   // SetAllocatedSendBitrateLimits sets bitrates limits imposed by send codec
@@ skipping 52 matching lines @@
   std::unique_ptr<DelayBasedBwe> delay_based_bwe_ GUARDED_BY(bwe_lock_);
 
   rtc::ThreadChecker worker_thread_checker_;
 
   RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(SendSideCongestionController);
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_CONGESTION_CONTROLLER_INCLUDE_SEND_SIDE_CONGESTION_CONTROLLER_H_