Add support for transport wide sequence numbers

webrtc/modules/bitrate_controller/send_time_history.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.
- */
-
-#ifndef WEBRTC_MODULES_BITRATE_CONTROLLER_SEND_TIME_HISTORY_H_
-#define WEBRTC_MODULES_BITRATE_CONTROLLER_SEND_TIME_HISTORY_H_
-
-#include <map>
-
-#include "webrtc/base/constructormagic.h"
-#include "webrtc/base/basictypes.h"
-
-namespace webrtc {
-
-class SendTimeHistory {
- public:
-  explicit SendTimeHistory(int64_t packet_age_limit);
-  virtual ~SendTimeHistory();
-
-  void AddAndRemoveOldSendTimes(uint16_t sequence_number, int64_t timestamp);
-  bool GetSendTime(uint16_t sequence_number, int64_t* timestamp, bool remove);
-  void Clear();
-
- private:
-  void EraseOld(int64_t limit);
-  void UpdateOldestSequenceNumber();
-
-  const int64_t packet_age_limit_;
-  uint16_t oldest_sequence_number_;  // Oldest may not be lowest.
-  std::map<uint16_t, int64_t> history_;
-
-  DISALLOW_COPY_AND_ASSIGN(SendTimeHistory);
-};
-
-}  // namespace webrtc
-#endif  // WEBRTC_MODULES_BITRATE_CONTROLLER_SEND_TIME_HISTORY_H_