Move shared files in net/quic/ into net/quic/core/

net/quic/congestion_control/prr_sender.h

-// Copyright (c) 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-//
-// Implements Proportional Rate Reduction (PRR) per RFC 6937.
-
-#ifndef NET_QUIC_CONGESTION_CONTROL_PRR_SENDER_H_
-#define NET_QUIC_CONGESTION_CONTROL_PRR_SENDER_H_
-
-#include <stddef.h>
-
-#include "net/quic/quic_bandwidth.h"
-#include "net/quic/quic_time.h"
-
-namespace net {
-
-class NET_EXPORT_PRIVATE PrrSender {
- public:
-  PrrSender();
-  // OnPacketLost should be called on the first loss that triggers a recovery
-  // period and all other methods in this class should only be called when in
-  // recovery.
-  void OnPacketLost(QuicByteCount bytes_in_flight);
-  void OnPacketSent(QuicByteCount sent_bytes);
-  void OnPacketAcked(QuicByteCount acked_bytes);
-  QuicTime::Delta TimeUntilSend(QuicByteCount congestion_window,
-                                QuicByteCount bytes_in_flight,
-                                QuicByteCount slowstart_threshold) const;
-
- private:
-  // Bytes sent and acked since the last loss event.
-  // |bytes_sent_since_loss_| is the same as "prr_out_" in RFC 6937,
-  // and |bytes_delivered_since_loss_| is the same as "prr_delivered_".
-  QuicByteCount bytes_sent_since_loss_;
-  QuicByteCount bytes_delivered_since_loss_;
-  size_t ack_count_since_loss_;
-
-  // The congestion window before the last loss event.
-  QuicByteCount bytes_in_flight_before_loss_;
-};
-
-}  // namespace net
-
-#endif  // NET_QUIC_CONGESTION_CONTROL_PRR_SENDER_H_