FTP: add more detailed error codes based on RFC 959.

net/ftp/ftp_network_transaction.h

Index: net/ftp/ftp_network_transaction.h
diff --git a/net/ftp/ftp_network_transaction.h b/net/ftp/ftp_network_transaction.h
index 66724c69cd57d05ff700ded98f692bcd549da2dd..31c38c746c409182ab8dec4921e028bb058b6f35 100644
--- a/net/ftp/ftp_network_transaction.h
+++ b/net/ftp/ftp_network_transaction.h
@@ -63,29 +63,6 @@ class FtpNetworkTransaction : public FtpTransaction {
     COMMAND_QUIT,
   };
 
-  enum ErrorClass {
-    // The requested action was initiated. The client should expect another
-    // reply before issuing the next command.
-    ERROR_CLASS_INITIATED,
-
-    // The requested action has been successfully completed.
-    ERROR_CLASS_OK,
-
-    // The command has been accepted, but to complete the operation, more
-    // information must be sent by the client.
-    ERROR_CLASS_INFO_NEEDED,
-
-    // The command was not accepted and the requested action did not take place.
-    // This condition is temporary, and the client is encouraged to restart the
-    // command sequence.
-    ERROR_CLASS_TRANSIENT_ERROR,
-
-    // The command was not accepted and the requested action did not take place.
-    // This condition is rather permanent, and the client is discouraged from
-    // repeating the exact request.
-    ERROR_CLASS_PERMANENT_ERROR,
-  };
-
   // Major categories of remote system types, as returned by SYST command.
   enum SystemType {
     SYSTEM_TYPE_UNKNOWN,
@@ -123,10 +100,6 @@ class FtpNetworkTransaction : public FtpTransaction {
 
   int SendFtpCommand(const std::string& command, Command cmd);
 
-  // Return the error class for given response code. You should validate the
-  // code to be in range 100-599.
-  static ErrorClass GetErrorClass(int response_code);
-
   // Returns request path suitable to be included in an FTP command. If the path
   // will be used as a directory, |is_directory| should be true.
   std::string GetRequestPathForFtpCommand(bool is_directory) const;