Structure of BBR's implementation,some main classes and functions which are going to be used

webrtc/modules/remote_bitrate_estimator/test/estimators/congestion_window.h

+/*
+ *  Copyright (c) 2017 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_REMOTE_BITRATE_ESTIMATOR_TEST_ESTIMATORS_CONGESTION_WINDOW_H_
+#define WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_TEST_ESTIMATORS_CONGESTION_WINDOW_H_
+
+#include <climits>
+#include <list>
+#include <map>
+#include <memory>
+#include <utility>
+#include <vector>
+
+#include "webrtc/logging/rtc_event_log/mock/mock_rtc_event_log.h"
+#include "webrtc/modules/remote_bitrate_estimator/include/send_time_history.h"
+#include "webrtc/modules/remote_bitrate_estimator/test/bwe.h"
+
+namespace webrtc {
+namespace testing {
+namespace bwe {
+class CongestionWindow {
+ public:
+  void set_gain(float gain);
+  int64_t data_inflight();
+  int64_t GetCongestionWindow();
+  // Packet sent from sender,meaning it is inflight

[philipel, 2017/06/01 15:06:53]

whitespace

[philipel, 2017/06/01 15:06:53]

I don't quite understand this comment.

[gnish2, 2017/06/01 15:12:44]

Done.

[gnish2, 2017/06/01 15:12:44]

Done.

+  // until we receive it.
+  void PacketSent();
+  // Ack was received by sender,meaning

[philipel, 2017/06/01 15:06:53]

whitespace

[gnish2, 2017/06/01 15:12:44]

Done.

+  // packet is no longer inflight.
+  void AckReceived();
+  // Returnes whether or not data inflight has been under
+  // fixed value for past x rounds and y ms.
+  bool DataInflightDecreased();
+};
+}  // namespace bwe
+}  // namespace testing
+}  // namespace webrtc
+
+#endif  // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_TEST_ESTIMATORS_CONGESTION_WINDOW_H_