Add SendWindowUpdate and SendBlocked methods to QuicConnection.

net/quic/quic_connection.h

Index: net/quic/quic_connection.h
diff --git a/net/quic/quic_connection.h b/net/quic/quic_connection.h
index 481f426e1937ee3b8ded29ae8341f39f1675775c..5ced84f1d524283ae8a1f0dfef930b7385109254 100644
--- a/net/quic/quic_connection.h
+++ b/net/quic/quic_connection.h
@@ -231,11 +231,18 @@ class NET_EXPORT_PRIVATE QuicConnection
                                   bool fin,
                                   QuicAckNotifier::DelegateInterface* delegate);
 
-  // Send a stream reset frame to the peer.
+  // Send a RST_STREAM frame to the peer.
   virtual void SendRstStream(QuicStreamId id,
                              QuicRstStreamErrorCode error,
                              QuicStreamOffset bytes_written);
 
+  // Send a BLOCKED frame to the peer.
+  virtual void SendBlocked(QuicStreamId id);
+
+  // Send a WINDOW_UPDATE frame to the peer.
+  virtual void SendWindowUpdate(QuicStreamId id,
+                                QuicStreamOffset byte_offset);
+
   // Sends the connection close packet without affecting the state of the
   // connection.  This should only be called if the session is actively being
   // destroyed: otherwise call SendConnectionCloseWithDetails instead.