Extracting NetLog inner classes into their own classes.

net/url_request/url_request_netlog_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_URL_REQUEST_URL_REQUEST_NETLOG_PARAMS_H_
 #define NET_URL_REQUEST_URL_REQUEST_NETLOG_PARAMS_H_
 
 #include <stdint.h>
 
+#include <memory>
 #include <string>
 
 #include "net/base/net_export.h"
 #include "net/base/request_priority.h"
-#include "net/log/net_log.h"
 
 class GURL;
 
 namespace base {
 class Value;
 }
 
 namespace net {
 
+class NetLogCaptureMode;
+
 // Returns a Value containing NetLog parameters for starting a URLRequest.
 NET_EXPORT std::unique_ptr<base::Value> NetLogURLRequestStartCallback(
     const GURL* url,
     const std::string* method,
     int load_flags,
     RequestPriority priority,
     int64_t upload_id,
     NetLogCaptureMode /* capture_mode */);
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_NETLOG_PARAMS_H_