Extracting NetLog inner classes into their own classes.

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 <utility>
 
 #include "base/callback_helpers.h"
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/time/time.h"
 #include "net/base/io_buffer.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_errors.h"
 #include "net/socket/socket_performance_watcher.h"
 
 namespace net {
 
+class NetLogWithSource;
+
 TCPClientSocket::TCPClientSocket(
     const AddressList& addresses,
     std::unique_ptr<SocketPerformanceWatcher> socket_performance_watcher,
     net::NetLog* net_log,
-    const net::NetLog::Source& source)
+    const net::NetLogSource& source)
     : socket_performance_watcher_(socket_performance_watcher.get()),
       socket_(new TCPSocket(std::move(socket_performance_watcher),
                             net_log,
                             source)),
       addresses_(addresses),
       current_address_index_(-1),
       next_connect_state_(CONNECT_STATE_NONE),
       previously_disconnected_(false),
       total_received_bytes_(0) {}
 
@@ skipping 351 matching lines @@
 void TCPClientSocket::EmitTCPMetricsHistogramsOnDisconnect() {
   base::TimeDelta rtt;
   if (socket_->GetEstimatedRoundTripTime(&rtt)) {
     UMA_HISTOGRAM_CUSTOM_TIMES("Net.TcpRtt.AtDisconnect", rtt,
                                base::TimeDelta::FromMilliseconds(1),
                                base::TimeDelta::FromMinutes(10), 100);
   }
 }
 
 }  // namespace net