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

net/tools/quic/quic_simple_server_session.cc

 // Copyright (c) 2012 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.
 
 #include "net/tools/quic/quic_simple_server_session.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/stl_util.h"
@@ skipping 17 matching lines @@
     const QuicCryptoServerConfig* crypto_config,
     QuicCompressedCertsCache* compressed_certs_cache)
     : QuicServerSessionBase(config,
                             connection,
                             visitor,
                             helper,
                             crypto_config,
                             compressed_certs_cache),
       highest_promised_stream_id_(0) {}
 
-QuicSimpleServerSession::~QuicSimpleServerSession() {}
+QuicSimpleServerSession::~QuicSimpleServerSession() {
+  delete connection();
+}
 
 QuicCryptoServerStreamBase*
 QuicSimpleServerSession::CreateQuicCryptoServerStream(
     const QuicCryptoServerConfig* crypto_config,
     QuicCompressedCertsCache* compressed_certs_cache) {
   return new QuicCryptoServerStream(crypto_config, compressed_certs_cache,
                                     FLAGS_enable_quic_stateless_reject_support,
                                     this);
 }
 
@@ skipping 149 matching lines @@
     DVLOG(1) << "created server push stream " << promised_stream->id();
 
     SpdyHeaderBlock request_headers(std::move(promised_info.request_headers));
 
     promised_streams_.pop_front();
     promised_stream->PushResponse(std::move(request_headers));
   }
 }
 
 }  // namespace net