FTP: fix directory listing parser for ftp.symantec.com.

net/ftp/ftp_directory_listing_parser_ls.cc

Index: net/ftp/ftp_directory_listing_parser_ls.cc
diff --git a/net/ftp/ftp_directory_listing_parser_ls.cc b/net/ftp/ftp_directory_listing_parser_ls.cc
index 38025a0d7677b403d75cc8d5d4dca3aa6129ed1b..038af116ccbb3bd95196e2a24d983bc9591dcc0b 100644
--- a/net/ftp/ftp_directory_listing_parser_ls.cc
+++ b/net/ftp/ftp_directory_listing_parser_ls.cc
@@ -158,9 +158,11 @@ bool FtpDirectoryListingParserLs::ConsumeLine(const string16& line) {
   entry.name = FtpUtil::GetStringPartAfterColumns(line, 6 + column_offset);
   if (entry.type == FtpDirectoryListingEntry::SYMLINK) {
     string16::size_type pos = entry.name.rfind(ASCIIToUTF16(" -> "));
-    if (pos == string16::npos)
-      return false;
-    entry.name = entry.name.substr(0, pos);
+
+    // We don't require the " -> " to be present. Some FTP servers don't send
+    // the symlink target, possibly for security reasons.
+    if (pos != string16::npos)
+      entry.name = entry.name.substr(0, pos);
   }
 
   entries_.push(entry);