Refactor of QUIC's rtt storage and calculation to have a single RttStats

net/quic/test_tools/quic_sent_packet_manager_peer.cc

Index: net/quic/test_tools/quic_sent_packet_manager_peer.cc
diff --git a/net/quic/test_tools/quic_sent_packet_manager_peer.cc b/net/quic/test_tools/quic_sent_packet_manager_peer.cc
index 44b1b9046939909cd7063cb03a389848f0f3ada8..f1643d75a14412d300fd281897dc237201c6a51e 100644
--- a/net/quic/test_tools/quic_sent_packet_manager_peer.cc
+++ b/net/quic/test_tools/quic_sent_packet_manager_peer.cc
@@ -34,6 +34,12 @@ void QuicSentPacketManagerPeer::SetLossAlgorithm(
 }
 
 // static
+RttStats* QuicSentPacketManagerPeer::GetRttStats(
+    QuicSentPacketManager* sent_packet_manager) {
+  return &sent_packet_manager->rtt_stats_;
+}
+
+// static
 size_t QuicSentPacketManagerPeer::GetNackCount(
     const QuicSentPacketManager* sent_packet_manager,
     QuicPacketSequenceNumber sequence_number) {
@@ -64,12 +70,6 @@ QuicTime QuicSentPacketManagerPeer::GetSentTime(
 }
 
 // static
-QuicTime::Delta QuicSentPacketManagerPeer::rtt(
-    QuicSentPacketManager* sent_packet_manager) {
-  return sent_packet_manager->rtt_sample_;
-}
-
-// static
 bool QuicSentPacketManagerPeer::IsRetransmission(
     QuicSentPacketManager* sent_packet_manager,
     QuicPacketSequenceNumber sequence_number) {