Change QUIC's delayed ack timer from 100ms to 25ms.

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 86 matching lines @@
 const QuicStreamId kMaxStreamIdDelta = 200;
 // Limit on the delta between header IDs.
 const QuicHeaderId kMaxHeaderIdDelta = 200;
 
 // Reserved ID for the crypto stream.
 const QuicStreamId kCryptoStreamId = 1;
 
 // Reserved ID for the headers stream.
 const QuicStreamId kHeadersStreamId = 3;
 
+// Maximum delayed ack time, in ms.
+const int kMaxDelayedAckTime = 25;
+
 // This is the default network timeout a for connection till the crypto
 // handshake succeeds and the negotiated timeout from the handshake is received.
 const int64 kDefaultInitialTimeoutSecs = 120;  // 2 mins.
 const int64 kDefaultTimeoutSecs = 60 * 10;  // 10 minutes.
 const int64 kDefaultMaxTimeForCryptoHandshakeSecs = 5;  // 5 secs.
 
 // Default ping timeout.
 const int64 kPingTimeoutSecs = 15;  // 15 secs.
 
 // We define an unsigned 16-bit floating point value, inspired by IEEE floats
@@ skipping 943 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_