Extracting NetLog inner classes into their own classes.

net/http/http_log_util.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_HTTP_HTTP_LOG_UTIL_
 #define NET_HTTP_HTTP_LOG_UTIL_
 
 #include <string>
 
 #include "base/strings/string_piece.h"
 #include "net/base/net_export.h"
-#include "net/log/net_log.h"
 #include "net/spdy/spdy_header_block.h"
 
 namespace base {
 class ListValue;
 }  // namespace base
 
 namespace net {
 
+class NetLogCaptureMode;
+
 // Given an HTTP header |header| with value |value|, returns the elided version
 // of the header value at |log_level|.
 NET_EXPORT_PRIVATE std::string ElideHeaderValueForNetLog(
     NetLogCaptureMode capture_mode,
     const std::string& header,
     const std::string& value);
 
 // Given an HTTP/2 GOAWAY frame |debug_data|, returns the elided version
 // according to |capture_mode|.
 NET_EXPORT_PRIVATE std::string ElideGoAwayDebugDataForNetLog(
     NetLogCaptureMode capture_mode,
     base::StringPiece debug_data);
 
 // Given a SpdyHeaderBlock, return its base::ListValue representation.
 std::unique_ptr<base::ListValue> ElideSpdyHeaderBlockForNetLog(
     const SpdyHeaderBlock& headers,
     NetLogCaptureMode capture_mode);
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_LOG_UTIL_