Fixes reduction for n-connection emulation in TCP Reno.

net/quic/congestion_control/tcp_cubic_sender_test.cc

Index: net/quic/congestion_control/tcp_cubic_sender_test.cc
diff --git a/net/quic/congestion_control/tcp_cubic_sender_test.cc b/net/quic/congestion_control/tcp_cubic_sender_test.cc
index 8da8cb99bce27960abb01f8b77dc411814df7c46..4fe8dbfb5014ddb89aa5b2a88a050b86b7253fa8 100644
--- a/net/quic/congestion_control/tcp_cubic_sender_test.cc
+++ b/net/quic/congestion_control/tcp_cubic_sender_test.cc
@@ -49,6 +49,10 @@ class TcpCubicSenderPeer : public TcpCubicSender {
     return hybrid_slow_start_;
   }
 
+  float GetRenoBeta() const {
+    return RenoBeta();
+  }
+
   RttStats rtt_stats_;
   QuicConnectionStats stats_;
 };
@@ -599,7 +603,7 @@ TEST_F(TcpCubicSenderTest, 2ConnectionCongestionAvoidanceAtEndOfRecovery) {
   LoseNPackets(1);
 
   // We should now have fallen out of slow start with a reduced window.
-  expected_send_window *= kRenoBeta;
+  expected_send_window = expected_send_window * sender_->GetRenoBeta();
   EXPECT_EQ(expected_send_window, sender_->GetCongestionWindow());
 
   // No congestion window growth should occur in recovery phase, i.e., until the