Probing: Add support for exponential startup probing

webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc

 /*
  *  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 21 matching lines @@
   inline bool operator()(const PacketInfo& lhs, const PacketInfo& rhs) {
     if (lhs.arrival_time_ms != rhs.arrival_time_ms)
       return lhs.arrival_time_ms < rhs.arrival_time_ms;
     if (lhs.send_time_ms != rhs.send_time_ms)
       return lhs.send_time_ms < rhs.send_time_ms;
     return lhs.sequence_number < rhs.sequence_number;
   }
 };
 
 TransportFeedbackAdapter::TransportFeedbackAdapter(
-    BitrateController* bitrate_controller,
     Clock* clock)
     : send_time_history_(clock, kSendTimeHistoryWindowMs),
-      bitrate_controller_(bitrate_controller),
       clock_(clock),
       current_offset_ms_(kNoTimestamp),
       last_timestamp_us_(kNoTimestamp) {}
 
 TransportFeedbackAdapter::~TransportFeedbackAdapter() {
 }
 
 void TransportFeedbackAdapter::SetBitrateEstimator(
     RemoteBitrateEstimator* rbe) {
   if (bitrate_estimator_.get() != rbe) {
@@ skipping 73 matching lines @@
 }
 
 void TransportFeedbackAdapter::OnTransportFeedback(
     const rtcp::TransportFeedback& feedback) {
   const std::vector<PacketInfo> packet_feedback_vector =
       GetPacketFeedbackVector(feedback);
   RTC_DCHECK(bitrate_estimator_.get() != nullptr);
   bitrate_estimator_->IncomingPacketFeedbackVector(packet_feedback_vector);
 }
 
-void TransportFeedbackAdapter::OnReceiveBitrateChanged(
-    const std::vector<uint32_t>& ssrcs,
-    uint32_t bitrate) {
-  bitrate_controller_->UpdateDelayBasedEstimate(bitrate);
-}
-
 void TransportFeedbackAdapter::OnRttUpdate(int64_t avg_rtt_ms,
                                            int64_t max_rtt_ms) {
   RTC_DCHECK(bitrate_estimator_.get() != nullptr);
   bitrate_estimator_->OnRttUpdate(avg_rtt_ms, max_rtt_ms);
 }
 
 }  // namespace webrtc