Split FTP LIST parsing code into individual files for each listing style.

net/ftp/ftp_util.h

 // Copyright (c) 2009 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_FTP_FTP_UTIL_H_
 #define NET_FTP_FTP_UTIL_H_
 
 #include <string>
 
+#include "base/string16.h"
+
 namespace net {
 
 class FtpUtil {
  public:
   // Convert Unix file path to VMS path (must be a file, and not a directory).
   static std::string UnixFilePathToVMS(const std::string& unix_path);
 
   // Convert Unix directory path to VMS path (must be a directory).
   static std::string UnixDirectoryPathToVMS(const std::string& unix_path);
 
   // Convert VMS path to Unix-style path.
   static std::string VMSPathToUnix(const std::string& vms_path);
+
+  // Convert three-letter month abbreviation (like Nov) to its number (in range
+  // 1-12).
+  static bool ThreeLetterMonthToNumber(const string16& text, int* number);
 };
 
 }  // namespace net
 
 #endif  // NET_FTP_FTP_UTIL_H_