fixing bustage (bug 318193)

extensions/xforms/nsXFormsSubmissionElement.cpp

@@ -67,8 +67,8 @@
 #include "nsIDOMProcessingInstruction.h"
 #include "nsIDOMParser.h"
 #include "nsComponentManagerUtils.h"
+#include "nsStringStream.h"
 #include "nsIDocShell.h"
-#include "nsIStringStream.h"
 #include "nsIInputStream.h"
 #include "nsIStorageStream.h"
 #include "nsIMultiplexInputStream.h"