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

net/tools/quic/quic_simple_server_packet_writer.cc

 // 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.
 
 #include "net/tools/quic/quic_simple_server_packet_writer.h"
 
 #include "base/callback_helpers.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/metrics/sparse_histogram.h"
@@ skipping 79 matching lines @@
       UMA_HISTOGRAM_SPARSE_SLOWLY("Net.QuicSession.WriteError", -rv);
       status = WRITE_STATUS_ERROR;
     } else {
       status = WRITE_STATUS_BLOCKED;
       write_blocked_ = true;
     }
   }
   return WriteResult(status, rv);
 }
 
+QuicByteCount QuicSimpleServerPacketWriter::GetMaxPacketSize(
+    const IPEndPoint& peer_address) const {
+  return kMaxPacketSize;
+}
+
 }  // namespace tools
 }  // namespace net