Add support for wu-ftpd style FTP LIST response format.

net/ftp/ftp_directory_listing_parser_ls.h

Index: net/ftp/ftp_directory_listing_parser_ls.h
diff --git a/net/ftp/ftp_directory_listing_parser_ls.h b/net/ftp/ftp_directory_listing_parser_ls.h
index 3fd0d322c2b74113bfb9492e854588d86c5e6fd8..50e0a1f8f107db40637e5c88f85e28f0739656a3 100644
--- a/net/ftp/ftp_directory_listing_parser_ls.h
+++ b/net/ftp/ftp_directory_listing_parser_ls.h
@@ -30,6 +30,11 @@ class FtpDirectoryListingParserLs : public FtpDirectoryListingParser {
   // integer. Only one such header is allowed per listing.
   bool received_total_line_;
 
+  // There is a variant of the listing served by wu-ftpd which doesn't contain
+  // the "number of links" column (the second column in a "standard" ls -l
+  // listing). Store an offset to reference later columns.
+  int column_offset_;
+
   std::queue<FtpDirectoryListingEntry> entries_;
 
   DISALLOW_COPY_AND_ASSIGN(FtpDirectoryListingParserLs);