Fix some FTP DCHECKs on 1xx responses.

net/ftp/ftp_network_transaction.cc

Index: net/ftp/ftp_network_transaction.cc
diff --git a/net/ftp/ftp_network_transaction.cc b/net/ftp/ftp_network_transaction.cc
index 8ecde3104de06e93f15218764c8ae756c40a1f6a..d2eca9fb7a7e14f9aa8631ba3ba68eede332f32d 100644
--- a/net/ftp/ftp_network_transaction.cc
+++ b/net/ftp/ftp_network_transaction.cc
@@ -753,6 +753,8 @@ int FtpNetworkTransaction::DoCtrlWriteUSER() {
 int FtpNetworkTransaction::ProcessResponseUSER(
     const FtpCtrlResponse& response) {
   switch (GetErrorClass(response.status_code)) {
+    case ERROR_CLASS_INITIATED:
+      return Stop(ERR_INVALID_RESPONSE);
     case ERROR_CLASS_OK:
       next_state_ = STATE_CTRL_WRITE_SYST;
       break;
@@ -784,6 +786,8 @@ int FtpNetworkTransaction::DoCtrlWritePASS() {
 int FtpNetworkTransaction::ProcessResponsePASS(
     const FtpCtrlResponse& response) {
   switch (GetErrorClass(response.status_code)) {
+    case ERROR_CLASS_INITIATED:
+      return Stop(ERR_INVALID_RESPONSE);
     case ERROR_CLASS_OK:
       next_state_ = STATE_CTRL_WRITE_SYST;
       break;