Introduce QUIC_VERSION_20: allowing endpoints to set different

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 f471638f3d1c01140c24a42cf6ce0b101a1a0a3f..53abb987635ac83774083540b11dbca162a707ec 100644
--- a/net/quic/test_tools/quic_config_peer.h
+++ b/net/quic/test_tools/quic_config_peer.h
@@ -21,9 +21,16 @@ class QuicConfigPeer {
   static void SetReceivedLossDetection(QuicConfig* config,
                                        QuicTag loss_detection);
 
+  // TODO(rjshade): Remove when removing QUIC_VERSION_19.
   static void SetReceivedInitialFlowControlWindow(QuicConfig* config,
                                                   uint32 window_bytes);
 
+  static void SetReceivedInitialStreamFlowControlWindow(QuicConfig* config,
+                                                        uint32 window_bytes);
+
+  static void SetReceivedInitialSessionFlowControlWindow(QuicConfig* config,
+                                                         uint32 window_bytes);
+
  private:
   DISALLOW_COPY_AND_ASSIGN(QuicConfigPeer);
 };