QuicSession no longer directly owns its QuicConnection. Not flag protected.

net/quic/core/quic_spdy_session.h

 // Copyright (c) 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_QUIC_QUIC_SPDY_SESSION_H_
 #define NET_QUIC_QUIC_SPDY_SESSION_H_
 
 #include <stddef.h>
 
 #include <memory>
 
 #include "base/macros.h"
 #include "net/quic/core/quic_header_list.h"
 #include "net/quic/core/quic_headers_stream.h"
 #include "net/quic/core/quic_session.h"
 #include "net/quic/core/quic_spdy_stream.h"
 
 namespace net {
 
 namespace test {
 class QuicSpdySessionPeer;
 }  // namespace test
 
 // 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);
 
   ~QuicSpdySession() override;
 
   void Initialize() override;
 
   // Called by |headers_stream_| when headers have been received for a stream.
   virtual void OnStreamHeaders(QuicStreamId stream_id,
                                base::StringPiece headers_data);
   // Called by |headers_stream_| when headers with a priority have been
@@ skipping 96 matching lines @@
   // simulate forced HOL blocking between streams as happens in
   // HTTP/2 over TCP.
   bool force_hol_blocking_;
 
   DISALLOW_COPY_AND_ASSIGN(QuicSpdySession);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_QUIC_SPDY_SESSION_H_