Update from https://crrev.com/315085

net/socket/ssl_client_socket_pool.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/socket/ssl_client_socket_pool.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
@@ skipping 229 matching lines @@
   if (error_response_info_.headers.get()) {
     handle->set_pending_http_proxy_connection(
         transport_socket_handle_.release());
   }
   handle->set_ssl_error_response_info(error_response_info_);
   if (!connect_timing_.ssl_start.is_null())
     handle->set_is_ssl_error(true);
 }
 
 void SSLConnectJob::OnIOComplete(int result) {
+  // TODO(pkasting): Remove ScopedTracker below once crbug.com/455884 is fixed.
+  tracked_objects::ScopedTracker tracking_profile(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION("455884 SSLConnectJob::OnIOComplete"));
   int rv = DoLoop(result);
   if (rv != ERR_IO_PENDING)
     NotifyDelegateOfCompletion(rv);  // Deletes |this|.
 }
 
 int SSLConnectJob::DoLoop(int result) {
   DCHECK_NE(next_state_, STATE_NONE);
 
   int rv = result;
   do {
@@ skipping 579 matching lines @@
   CHECK(it != messenger_map_.end());
   delete it->second;
   messenger_map_.erase(it);
 }
 
 void SSLClientSocketPool::OnSSLConfigChanged() {
   FlushWithError(ERR_NETWORK_CHANGED);
 }
 
 }  // namespace net