Extracting NetLog inner classes into their own classes.

net/base/sdch_net_log_params.h

 // Copyright 2014 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_BASE_SDCH_NET_LOG_PARAMS_H_
 #define NET_BASE_SDCH_NET_LOG_PARAMS_H_
 
+#include <memory>
 #include <string>
 
 #include "net/base/net_export.h"
 #include "net/base/sdch_problem_codes.h"
-#include "net/log/net_log.h"
 
 class GURL;
 
+namespace base {
+class Value;
+}
+
 namespace net {
 
+class NetLogCaptureMode;
+
 NET_EXPORT std::unique_ptr<base::Value> NetLogSdchResourceProblemCallback(
     SdchProblemCode problem,
     NetLogCaptureMode capture_mode);
 
 // If |is_error| is false, "net_error" field won't be added to the JSON and the
 // event won't be painted red in the netlog.
 NET_EXPORT std::unique_ptr<base::Value>
 NetLogSdchDictionaryFetchProblemCallback(SdchProblemCode problem,
                                          const GURL& url,
                                          bool is_error,
                                          NetLogCaptureMode capture_mode);
 
 }  // namespace net
 
 #endif  // NET_BASE_SDCH_NET_LOG_PARAMS_H_