NetLogEventParameter to Callback refactoring 9.

net/socket/socket_net_log_params.h

 // 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.
 
-#ifndef NET_SOCKET_SOCKET_ERROR_PARAMS_H_
-#define NET_SOCKET_SOCKET_ERROR_PARAMS_H_
+#ifndef NET_SOCKET_SOCKET_NET_LOG_PARAMS_H_
+#define NET_SOCKET_SOCKET_NET_LOG_PARAMS_H_
 #pragma once
 
 #include "net/base/net_log.h"
+#include "net/base/sys_addrinfo.h"
 
 namespace net {
 
-// Extra parameters to attach to the NetLog when we receive a socket error.
-class SocketErrorParams : public NetLog::EventParameters {
- public:
-  SocketErrorParams(int net_error, int os_error);
+class HostPortPair;
+class IPEndPoint;
 
-  virtual base::Value* ToValue() const OVERRIDE;
+// Creates a NetLog callback for socket error events.
+NetLog::ParametersCallback CreateNetLogSocketErrorCallback(int net_error,
+                                                           int os_error);
 
- protected:
-  virtual ~SocketErrorParams();
+// Creates a NetLog callback for a HostPortPair.
+// |host_and_port| must remain valid for the lifetime of the returned callback.
+NetLog::ParametersCallback CreateNetLogHostPortPairCallback(
+    const HostPortPair* host_and_port);
 
- private:
-  const int net_error_;
-  const int os_error_;
-};
+// Creates a NetLog callback for an IPEndPoint.
+// |address| must remain valid for the lifetime of the returned callback.
+NetLog::ParametersCallback CreateNetLogIPEndPointCallback(
+    const IPEndPoint* address);
+
+// Creates a NetLog callback for the source sockaddr on connect events.
+// |net_address| must remain valid for the lifetime of the returned callback.
+NetLog::ParametersCallback CreateNetLogSourceAddressCallback(
+    const struct sockaddr* net_address,
+    socklen_t address_len);
 
 }  // namespace net
 
-#endif  // NET_SOCKET_SOCKET_ERROR_PARAMS_H_
+#endif  // NET_SOCKET_SOCKET_NET_LOG_PARAMS_H_