Refactor QuicServerSessionBase::Visitor

net/quic/core/quic_spdy_session.h

Index: net/quic/core/quic_spdy_session.h
diff --git a/net/quic/core/quic_spdy_session.h b/net/quic/core/quic_spdy_session.h
index 369c5f0469e819f76352c352ea491733bf7d9ae2..670142ebffa605c14c0f030b3dd5682aebeddcc2 100644
--- a/net/quic/core/quic_spdy_session.h
+++ b/net/quic/core/quic_spdy_session.h
@@ -25,8 +25,10 @@ class QuicSpdySessionPeer;
 // A QUIC session with a headers stream.
 class NET_EXPORT_PRIVATE QuicSpdySession : public QuicSession {
  public:
-  // Does not take ownership of |connection|.
-  QuicSpdySession(QuicConnection* connection, const QuicConfig& config);
+  // Does not take ownership of |connection| or |visitor|.
+  QuicSpdySession(QuicConnection* connection,
+                  QuicSession::Visitor* visitor,
+                  const QuicConfig& config);
 
   ~QuicSpdySession() override;