Notfiy NQE of QUIC RTT

net/quic/quic_stream_factory.h

Index: net/quic/quic_stream_factory.h
diff --git a/net/quic/quic_stream_factory.h b/net/quic/quic_stream_factory.h
index c12736210ef14482cdb11ead8bebe68cc553580c..7a0cb4a85587fefb7fdf5c1c612ef9b32cf8f456 100644
--- a/net/quic/quic_stream_factory.h
+++ b/net/quic/quic_stream_factory.h
@@ -44,6 +44,7 @@ class QuicRandom;
 class QuicServerInfoFactory;
 class QuicServerId;
 class QuicStreamFactory;
+class SocketPerformanceWatcherFactory;
 class TransportSecurityState;
 
 namespace test {
@@ -116,6 +117,7 @@ class NET_EXPORT_PRIVATE QuicStreamFactory
       CertPolicyEnforcer* cert_policy_enforcer,
       ChannelIDService* channel_id_service,
       TransportSecurityState* transport_security_state,
+      const SocketPerformanceWatcherFactory* socket_performance_watcher_factory,
       QuicCryptoClientStreamFactory* quic_crypto_client_stream_factory,
       QuicRandom* random_generator,
       QuicClock* clock,
@@ -344,6 +346,11 @@ class NET_EXPORT_PRIVATE QuicStreamFactory
   scoped_ptr<QuicClock> clock_;
   const size_t max_packet_length_;
 
+  // Factory which is used to create socket performance watcher. A new watcher
+  // is created for every QUIC connection.
+  // |socket_performance_watcher_factory_| may be null.
+  const SocketPerformanceWatcherFactory* socket_performance_watcher_factory_;
+
   // The helper used for all connections.
   scoped_ptr<QuicConnectionHelper> helper_;