Further instrumentations of QuicStreamFactory::CreateSession to find janks

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"
+#include "base/profiler/scoped_tracker.h"
 #include "base/stl_util.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 #include "net/base/io_buffer.h"
 #include "net/base/net_errors.h"
 #include "net/base/network_activity_monitor.h"
 #include "net/http/transport_security_state.h"
 #include "net/quic/crypto/proof_verifier_chromium.h"
 #include "net/quic/crypto/quic_server_info.h"
 #include "net/quic/quic_connection_helper.h"
@@ skipping 147 matching lines @@
       transport_security_state_(transport_security_state),
       server_info_(server_info.Pass()),
       read_pending_(false),
       num_total_streams_(0),
       task_runner_(task_runner),
       net_log_(BoundNetLog::Make(net_log, NetLog::SOURCE_QUIC_SESSION)),
       logger_(new QuicConnectionLogger(this, 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_profile(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "422516 QuicClientSession::QuicClientSession"));
+
   connection->set_debug_visitor(logger_);
   IPEndPoint address;
   if (socket && socket->GetLocalAddress(&address) == OK &&
       address.GetFamily() == ADDRESS_FAMILY_IPV6) {
     connection->set_max_packet_length(
         connection->max_packet_length() - kAdditionalOverheadForIPv6);
   }
 }
 
 void QuicClientSession::InitializeSession(
@@ skipping 748 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