Update from https://crrev.com/304121

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 <list>
@@ skipping 58 matching lines @@
 // Maximum size of the congestion window, in packets, for TCP congestion control
 // algorithms.
 const size_t kMaxTcpCongestionWindow = 200;
 
 // Default size of the socket receive buffer in bytes.
 const QuicByteCount kDefaultSocketReceiveBuffer = 256 * 1024;
 // Minimum size of the socket receive buffer in bytes.
 // Smaller values are ignored.
 const QuicByteCount kMinSocketReceiveBuffer = 16 * 1024;
 
+// Don't allow a client to suggest an RTT shorter than 10ms.
+const uint32 kMinInitialRoundTripTimeUs = 10 * kNumMicrosPerMilli;
+
 // 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 1002 matching lines @@
   SequenceNumberList* all_transmissions;
   // In flight packets have not been abandoned or lost.
   bool in_flight;
   // True if the packet can never be acked, so it can be removed.
   bool is_unackable;
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_PROTOCOL_H_