Include the socket receive buffer in the connection handshake.

net/quic/quic_protocol.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.
 
 #ifndef NET_QUIC_QUIC_PROTOCOL_H_
 #define NET_QUIC_QUIC_PROTOCOL_H_
 
 #include <stddef.h>
 #include <limits>
 #include <map>
@@ skipping 51 matching lines @@
 const size_t kDefaultInitialWindow = 10;
 const uint32 kMaxInitialWindow = 100;
 
 // Default size of initial flow control window, for both stream and session.
 const uint32 kDefaultFlowControlSendWindow = 16 * 1024;  // 16 KB
 
 // Maximum size of the congestion window, in packets, for TCP congestion control
 // algorithms.
 const size_t kMaxTcpCongestionWindow = 200;
 
+// Size of the socket receive buffer in bytes.
+const QuicByteCount kDefaultSocketReceiveBuffer = 256000;

[wtc, 2014/08/07 22:04:39]

This is 250 KB. Just curious why we don't use a power of 2 (256 KB).

[ramant (doing other things), 2014/08/07 22:16:14]

Good point. In "spdy", we used to 64 * 1024.

ianswett: WDYT about using power of 2 (or 256 * 1024).

+
 // Don't allow a client to suggest an RTT longer than 15 seconds.
 const uint32 kMaxInitialRoundTripTimeUs = 15 * kNumMicrosPerSecond;
 
 // Maximum number of open streams per connection.
 const size_t kDefaultMaxStreamsPerConnection = 100;
 
 // Number of bytes reserved for public flags in the packet header.
 const size_t kPublicFlagsSize = 1;
 // Number of bytes reserved for version number in the packet header.
 const size_t kQuicVersionSize = 4;
@@ skipping 971 matching lines @@
   // Stores the sequence numbers of all transmissions of this packet.
   // Can never be null.
   SequenceNumberSet* all_transmissions;
   // In flight packets have not been abandoned or lost.
   bool in_flight;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PROTOCOL_H_