Remove unused original transmission stats from QuicAckNotifier.

net/quic/quic_ack_notifier.h

 // Copyright 2013 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.
 
 #ifndef NET_QUIC_QUIC_ACK_NOTIFIER_H_
 #define NET_QUIC_QUIC_ACK_NOTIFIER_H_
 
 #include "base/memory/ref_counted.h"
 #include "net/quic/quic_protocol.h"
 
 namespace net {
 
 // Used to register with a QuicConnection for notification once a set of packets
 // have all been ACKed.
 // The connection informs this class of newly ACKed sequence numbers, and once
 // we have seen ACKs for all the sequence numbers we are interested in, we
 // trigger a call to a provided Closure.
 class NET_EXPORT_PRIVATE QuicAckNotifier {
  public:
- class NET_EXPORT_PRIVATE DelegateInterface
-     : public base::RefCounted<DelegateInterface> {
+  class NET_EXPORT_PRIVATE DelegateInterface
+      : public base::RefCounted<DelegateInterface> {
    public:
     DelegateInterface();
     // Args:
-    //  num_original_packets - Number of packets in the original transmission.
-    //  num_original_bytes - Number of packets in the original transmission.
     //  num_retransmitted_packets - Number of packets that had to be
     //                              retransmitted.
     //  num_retransmitted_bytes - Number of bytes that had to be retransmitted.
-    virtual void OnAckNotification(int num_original_packets,
-                                   int num_original_bytes,
-                                   int num_retransmitted_packets,
+    virtual void OnAckNotification(int num_retransmitted_packets,
                                    int num_retransmitted_bytes,
                                    QuicTime::Delta delta_largest_observed) = 0;
+
    protected:
     friend class base::RefCounted<DelegateInterface>;
 
     // Delegates are ref counted.
     virtual ~DelegateInterface();
   };
 
   // QuicAckNotifier is expected to keep its own reference to the delegate.
   explicit QuicAckNotifier(DelegateInterface* delegate);
   virtual ~QuicAckNotifier();
@@ skipping 31 matching lines @@
 
   // The delegate's OnAckNotification() method will be called once we have been
   // notified of ACKs for all the sequence numbers we are tracking.
   // This is not owned by OnAckNotifier and must outlive it.
   scoped_refptr<DelegateInterface> delegate_;
 
   // Sequence numbers this notifier is waiting to hear about. The
   // delegate will not be called until this is empty.
   base::hash_map<QuicPacketSequenceNumber, PacketInfo> sequence_numbers_;
 
-  // Transmission and retransmission stats.
-  // Number of packets in the original transmission.
-  int original_packet_count_;
-  // Number of packets in the original transmission.
-  int original_byte_count_;
   // Number of packets that had to be retransmitted.
   int retransmitted_packet_count_;
   // Number of bytes that had to be retransmitted.
   int retransmitted_byte_count_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicAckNotifier);
 };
 
 };  // namespace net
 
 #endif  // NET_QUIC_QUIC_ACK_NOTIFIER_H_