Allow QUIC pacing and time-based loss detection to be enabled via

net/quic/test_tools/quic_config_peer.h

Index: net/quic/test_tools/quic_config_peer.h
diff --git a/net/quic/test_tools/quic_config_peer.h b/net/quic/test_tools/quic_config_peer.h
index 53abb987635ac83774083540b11dbca162a707ec..b68960b6b39e32e23849110e28bcb8d92c57e0ae 100644
--- a/net/quic/test_tools/quic_config_peer.h
+++ b/net/quic/test_tools/quic_config_peer.h
@@ -31,6 +31,10 @@ class QuicConfigPeer {
   static void SetReceivedInitialSessionFlowControlWindow(QuicConfig* config,
                                                          uint32 window_bytes);
 
+  static void SetReceivedCongestionOptions(QuicConfig* config,
+                                           const QuicTagVector options);
+
+
  private:
   DISALLOW_COPY_AND_ASSIGN(QuicConfigPeer);
 };