When talking >=QUIC_VERSION_22, regularly send updated bandwidth

net/quic/quic_packet_generator.h

 // Copyright (c) 2012 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.
 //
 // Responsible for generating packets on behalf of a QuicConnection.
 // Packets are serialized just-in-time.  Control frames are queued.
 // Ack and Feedback frames will be requested from the Connection
 // just-in-time.  When a packet needs to be sent, the Generator
 // will serialize a packet and pass it to QuicConnection::SendOrQueuePacket()
 //
@@ skipping 47 matching lines @@
 #include "net/quic/quic_types.h"
 
 namespace net {
 
 namespace test {
 class QuicPacketGeneratorPeer;
 }  // namespace test
 
 class QuicAckNotifier;
 
-class NET_EXPORT_PRIVATE QuicPacketGenerator
-    : public QuicSentPacketManager::NetworkChangeVisitor {
+class NET_EXPORT_PRIVATE QuicPacketGenerator {
  public:
   class NET_EXPORT_PRIVATE DelegateInterface {
    public:
     virtual ~DelegateInterface() {}
     virtual bool ShouldGeneratePacket(TransmissionType transmission_type,
                                       HasRetransmittableData retransmittable,
                                       IsHandshake handshake) = 0;
     virtual QuicAckFrame* CreateAckFrame() = 0;
     virtual QuicCongestionFeedbackFrame* CreateFeedbackFrame() = 0;
     virtual QuicStopWaitingFrame* CreateStopWaitingFrame() = 0;
@@ skipping 13 matching lines @@
     virtual void OnFrameAddedToPacket(const QuicFrame& frame) {}
   };
 
   QuicPacketGenerator(QuicConnectionId connection_id,
                       QuicFramer* framer,
                       QuicRandom* random_generator,
                       DelegateInterface* delegate);
 
   virtual ~QuicPacketGenerator();
 
-  // QuicSentPacketManager::NetworkChangeVisitor methods.
-  virtual void OnCongestionWindowChange(QuicByteCount congestion_window)
-      OVERRIDE;
+  // Called by the connection in the event of the congestion window changing.
+  void OnCongestionWindowChange(QuicByteCount congestion_window);
 
   // Indicates that an ACK frame should be sent.  If |also_send_feedback| is
   // true, then it also indicates a CONGESTION_FEEDBACK frame should be sent.
   // If |also_send_stop_waiting| is true, then it also indicates that a
   // STOP_WAITING frame should be sent as well.
   // The contents of the frame(s) will be generated via a call to the delegates
   // CreateAckFrame() and CreateFeedbackFrame() when the packet is serialized.
   void SetShouldSendAck(bool also_send_feedback,
                         bool also_send_stop_waiting);
 
@@ skipping 124 matching lines @@
   scoped_ptr<QuicAckFrame> pending_ack_frame_;
   scoped_ptr<QuicCongestionFeedbackFrame> pending_feedback_frame_;
   scoped_ptr<QuicStopWaitingFrame> pending_stop_waiting_frame_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicPacketGenerator);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PACKET_GENERATOR_H_