relnote: Allow individual QUIC writers to limit the maximum packet size.

net/tools/quic/quic_simple_per_connection_packet_writer.h

 // Copyright 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.
 
 #ifndef NET_QUIC_TOOLS_QUIC_SIMPLE_PER_CONNECTION_PACKET_WRITER_H_
 #define NET_QUIC_TOOLS_QUIC_SIMPLE_PER_CONNECTION_PACKET_WRITER_H_
 
 #include "base/memory/weak_ptr.h"
 #include "net/quic/quic_connection.h"
 #include "net/quic/quic_packet_writer.h"
@@ skipping 20 matching lines @@
 
   // Default implementation of the QuicPacketWriter interface: Passes everything
   // to |shared_writer_|.
   WriteResult WritePacket(const char* buffer,
                           size_t buf_len,
                           const IPAddressNumber& self_address,
                           const IPEndPoint& peer_address) override;
   bool IsWriteBlockedDataBuffered() const override;
   bool IsWriteBlocked() const override;
   void SetWritable() override;
+  QuicByteCount GetMaxPacketSize(const IPEndPoint& peer_address) const override;
 
  private:
   void OnWriteComplete(WriteResult result);
 
   QuicSimpleServerPacketWriter* shared_writer_;  // Not owned.
   QuicConnection* connection_;  // Not owned.
 
   base::WeakPtrFactory<QuicSimplePerConnectionPacketWriter> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicSimplePerConnectionPacketWriter);
 };
 
 }  // namespace tools
 }  // namespace net
 
 #endif  // NET_QUIC_TOOLS_QUIC_SIMPLE_PER_CONNECTION_PACKET_WRITER_H_