Rollback of merge internal change: 87346681.

net/quic/quic_connection.cc

Index: net/quic/quic_connection.cc
diff --git a/net/quic/quic_connection.cc b/net/quic/quic_connection.cc
index 524187082ed6d43c8af53e8b1b7d9ff19602ebf9..f4d3c5967784e6544ae40d836ca90b134465a992 100644
--- a/net/quic/quic_connection.cc
+++ b/net/quic/quic_connection.cc
@@ -61,6 +61,9 @@ const size_t kMaxFecGroups = 2;
 // Maximum number of acks received before sending an ack in response.
 const QuicPacketCount kMaxPacketsReceivedBeforeAckSend = 20;
 
+// Maximum number of tracked packets.
+const QuicPacketCount kMaxTrackedPackets = 5 * kMaxTcpCongestionWindow;
+
 bool Near(QuicPacketSequenceNumber a, QuicPacketSequenceNumber b) {
   QuicPacketSequenceNumber delta = (a > b) ? a - b : b - a;
   return delta <= kMaxPacketGap;