Instrumenting read callbacks to find jank in TCPSocketWin::Core::ReadDelegate::OnObjectSignaled

net/socket/tcp_client_socket.cc

 // Copyright (c) 2013 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/tcp_client_socket.h"
 
 #include "base/callback_helpers.h"
 #include "base/logging.h"
+#include "base/profiler/scoped_profile.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_util.h"
 
 namespace net {
 
 TCPClientSocket::TCPClientSocket(const AddressList& addresses,
                                  net::NetLog* net_log,
                                  const net::NetLog::Source& source)
@@ skipping 280 matching lines @@
     socket_->EndLoggingMultipleConnectAttempts(result);
     base::ResetAndReturn(&connect_callback_).Run(result);
   }
 }
 
 void TCPClientSocket::DidCompleteReadWrite(const CompletionCallback& callback,
                                            int result) {
   if (result > 0)
     use_history_.set_was_used_to_convey_data();
 
+  // TODO(vadimt): Remove ScopedProfile below once crbug.com/418183 is fixed.
+  tracked_objects::ScopedProfile tracking_profile(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "TCPClientSocket::DidCompleteReadWrite"));
   callback.Run(result);
 }
 
 int TCPClientSocket::OpenSocket(AddressFamily family) {
   DCHECK(!socket_->IsValid());
 
   int result = socket_->Open(family);
   if (result != OK)
     return result;
 
   socket_->SetDefaultOptionsForClient();
 
   return OK;
 }
 
 }  // namespace net