Fix recognizing FTP listings consisting of only one line.

net/ftp/ftp_directory_listing_buffer.h

Index: net/ftp/ftp_directory_listing_buffer.h
diff --git a/net/ftp/ftp_directory_listing_buffer.h b/net/ftp/ftp_directory_listing_buffer.h
index 948913586b03c973913f3c16fb7865c3d0cf5b36..f71685c51af8173ee8fff3395a8ced28498e0b4e 100644
--- a/net/ftp/ftp_directory_listing_buffer.h
+++ b/net/ftp/ftp_directory_listing_buffer.h
@@ -57,6 +57,10 @@ class FtpDirectoryListingBuffer {
   // Tries to parse full lines stored in |lines_|. Returns network error code.
   int ParseLines();
 
+  // Called when we received the entire input. Propagates that info to remaining
+  // parsers. Returns network error code.
+  int OnEndOfInput();
+
   // Detected encoding of the response (empty if unknown or ASCII).
   std::string encoding_;