Early connection migration in QUIC.

net/quic/quic_sent_packet_manager.cc

Index: net/quic/quic_sent_packet_manager.cc
diff --git a/net/quic/quic_sent_packet_manager.cc b/net/quic/quic_sent_packet_manager.cc
index e6babd10638674cf04117532af80c1c745efb75c..8c9321af5b698500d3cb7ac492add10b1b04f4f1 100644
--- a/net/quic/quic_sent_packet_manager.cc
+++ b/net/quic/quic_sent_packet_manager.cc
@@ -36,6 +36,8 @@ static const int64_t kMaxRetransmissionTimeMs = 60000;
 static const size_t kMaxRetransmissions = 10;
 // Maximum number of packets retransmitted upon an RTO.
 static const size_t kMaxRetransmissionsOnTimeout = 2;
+// Minimum number of consecutive RTOs before .

[Ryan Hamilton, 2016/02/02 04:19:59]

Is this comment complete?

[Jana, 2016/02/02 06:53:53]

Obviously not :-) I'm fixing this in the shared code.

+const size_t kMinTimeoutsWhenPeerUnreachable = 2;
 
 // Ensure the handshake timer isnt't faster than 10ms.
 // This limits the tenth retransmitted packet to 10s after the initial CHLO.
@@ -1030,6 +1032,10 @@ bool QuicSentPacketManager::InSlowStart() const {
   return send_algorithm_->InSlowStart();
 }
 
+bool QuicSentPacketManager::IsPeerMaybeUnreachable() const {
+  return consecutive_rto_count_ >= kMinTimeoutsWhenPeerUnreachable;
+}
+
 TransmissionInfo* QuicSentPacketManager::GetMutableTransmissionInfo(
     QuicPacketNumber packet_number) {
   return unacked_packets_.GetMutableTransmissionInfo(packet_number);