Extracting NetLog inner classes into their own classes.

net/socket/tcp_socket_posix.h

 // Copyright 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.
 
 #ifndef NET_SOCKET_TCP_SOCKET_POSIX_H_
 #define NET_SOCKET_TCP_SOCKET_POSIX_H_
 
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/time/time.h"
 #include "net/base/address_family.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_export.h"
-#include "net/log/net_log.h"
+#include "net/log/net_log_with_source.h"
 #include "net/socket/socket_performance_watcher.h"
 
 namespace base {
 class TickClock;
 }
 
 namespace net {
 
 class AddressList;
 class IOBuffer;
 class IPEndPoint;
 class SocketPosix;
+class NetLog;
+struct NetLogSource;
 
 class NET_EXPORT TCPSocketPosix {
  public:
   // |socket_performance_watcher| is notified of the performance metrics related
   // to this socket. |socket_performance_watcher| may be null.
   TCPSocketPosix(
       std::unique_ptr<SocketPerformanceWatcher> socket_performance_watcher,
       NetLog* net_log,
-      const NetLog::Source& source);
+      const NetLogSource& source);
   virtual ~TCPSocketPosix();
 
   int Open(AddressFamily family);
   // Takes ownership of |socket_fd|.
   int AdoptConnectedSocket(int socket_fd, const IPEndPoint& peer_address);
 
   int Bind(const IPEndPoint& address);
 
   int Listen(int backlog);
   int Accept(std::unique_ptr<TCPSocketPosix>* socket,
@@ skipping 196 matching lines @@
   bool logging_multiple_connect_attempts_;
 
   NetLogWithSource net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(TCPSocketPosix);
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_TCP_SOCKET_POSIX_H_