Propagate probing cluster id to SendTimeHistory.

webrtc/modules/congestion_controller/congestion_controller.cc

 /*
  *  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 30 matching lines @@
         rbe_(new RemoteBitrateEstimatorSingleStream(observer_, clock_)),
         using_absolute_send_time_(false),
         packets_since_absolute_send_time_(0),
         min_bitrate_bps_(RemoteBitrateEstimator::kDefaultMinBitrateBps) {}
 
   virtual ~WrappingBitrateEstimator() {}
 
   void IncomingPacket(int64_t arrival_time_ms,
                       size_t payload_size,
                       const RTPHeader& header,
-                      bool was_paced) override {
+                      int probe_cluster_id) override {
     CriticalSectionScoped cs(crit_sect_.get());
     PickEstimatorFromHeader(header);
-    rbe_->IncomingPacket(arrival_time_ms, payload_size, header, was_paced);
+    rbe_->IncomingPacket(arrival_time_ms, payload_size, header,
+                         probe_cluster_id);

[stefan-webrtc, 2016/05/26 16:29:49]

Note that this code is running on the receive-side, so you won't know the
cluster id here.

   }
 
   void Process() override {
     CriticalSectionScoped cs(crit_sect_.get());
     rbe_->Process();
   }
 
   int64_t TimeUntilNextProcess() override {
     CriticalSectionScoped cs(crit_sect_.get());
     return rbe_->TimeUntilNextProcess();
@@ skipping 274 matching lines @@
 bool CongestionController::IsSendQueueFull() const {
   return pacer_->ExpectedQueueTimeMs() > PacedSender::kMaxQueueLengthMs;
 }
 
 bool CongestionController::IsNetworkDown() const {
   rtc::CritScope cs(&critsect_);
   return network_state_ == kNetworkDown;
 }
 
 }  // namespace webrtc