QuicConnection no longer owns the debug visitor. No behavior change.

net/quic/quic_client_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/quic/quic_client_session.h"
 
 #include "base/callback_helpers.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
@@ skipping 164 matching lines @@
       net_log_(BoundNetLog::Make(net_log, NetLog::SOURCE_QUIC_SESSION)),
       logger_(new QuicConnectionLogger(this, connection_description, net_log_)),
       num_packets_read_(0),
       going_away_(false),
       weak_factory_(this) {
   // TODO(vadimt): Remove ScopedTracker below once crbug.com/422516 is fixed.
   tracked_objects::ScopedTracker tracking_profile1(
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "422516 QuicClientSession::QuicClientSession1"));
 
-  connection->set_debug_visitor(logger_);
+  connection->set_debug_visitor(logger_.get());
   IPEndPoint address;
   // TODO(rtenneti): Remove ScopedTracker below once crbug.com/422516 is fixed.
   tracked_objects::ScopedTracker tracking_profile2(
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "422516 QuicClientSession::QuicClientSession2"));
   if (socket && socket->GetLocalAddress(&address) == OK &&
       address.GetFamily() == ADDRESS_FAMILY_IPV6) {
     connection->set_max_packet_length(
         connection->max_packet_length() - kAdditionalOverheadForIPv6);
   }
@@ skipping 751 matching lines @@
     return;
 
   // TODO(rch): re-enable this code once beta is cut.
   //  if (stream_factory_)
   //    stream_factory_->OnSessionConnectTimeout(this);
   //  CloseAllStreams(ERR_QUIC_HANDSHAKE_FAILED);
   //  DCHECK_EQ(0u, GetNumOpenStreams());
 }
 
 }  // namespace net