Add a merely pass-through QuicMultipathSentPacketManager. Protected behind blocked flag FLAGS_quic_…

net/quic/quic_connection.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.
 //
 // The entity that handles framing writes for a Quic client or server.
 // Each QuicSession will have a connection associated with it.
 //
 // On the server side, the Dispatcher handles the raw reads, and hands off
 // packets via ProcessUdpPacket for framing and processing.
 //
@@ skipping 19 matching lines @@
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/strings/string_piece.h"
 #include "net/base/ip_address.h"
 #include "net/base/ip_endpoint.h"
 #include "net/quic/crypto/quic_decrypter.h"
 #include "net/quic/quic_alarm.h"
 #include "net/quic/quic_alarm_factory.h"
 #include "net/quic/quic_blocked_writer_interface.h"
 #include "net/quic/quic_framer.h"
+#include "net/quic/quic_connection_stats.h"
+#include "net/quic/quic_multipath_sent_packet_manager.h"
 #include "net/quic/quic_one_block_arena.h"
 #include "net/quic/quic_packet_creator.h"
 #include "net/quic/quic_packet_generator.h"
 #include "net/quic/quic_packet_writer.h"
 #include "net/quic/quic_protocol.h"
 #include "net/quic/quic_received_packet_manager.h"
 #include "net/quic/quic_sent_entropy_manager.h"
 #include "net/quic/quic_sent_packet_manager_interface.h"
 #include "net/quic/quic_time.h"
 #include "net/quic/quic_types.h"
@@ skipping 228 matching lines @@
   virtual QuicRandom* GetRandomGenerator() = 0;
 
   // Returns a QuicBufferAllocator to be used for all stream frame buffers.
   virtual QuicBufferAllocator* GetBufferAllocator() = 0;
 };
 
 class NET_EXPORT_PRIVATE QuicConnection
     : public QuicFramerVisitorInterface,
       public QuicBlockedWriterInterface,
       public QuicPacketGenerator::DelegateInterface,
-      public QuicSentPacketManager::NetworkChangeVisitor {
+      public QuicSentPacketManagerInterface::NetworkChangeVisitor {
  public:
   enum AckBundling {
     // Send an ack if it's already queued in the connection.
     SEND_ACK_IF_QUEUED,
     // Always send an ack.
     SEND_ACK,
     // Bundle an ack with outgoing data.
     SEND_ACK_IF_PENDING,
   };
 
@@ skipping 770 matching lines @@
 
   // If true, multipath is enabled for this connection.
   bool multipath_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicConnection);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_CONNECTION_H_