diff --git a/dom/html/HTMLTextAreaElement.cpp b/dom/html/HTMLTextAreaElement.cpp
index 937696726f28..5d55547abdd4 100644
--- a/dom/html/HTMLTextAreaElement.cpp
+++ b/dom/html/HTMLTextAreaElement.cpp
@@ -721,9 +721,8 @@ HTMLTextAreaElement::SetSelectionStart(const Nullable<uint32_t>& aSelectionStart
   }
 
   nsAutoString direction;
-  nsresult rv = GetSelectionDirection(direction);
-  if (NS_FAILED(rv)) {
-    aError.Throw(rv);
+  GetSelectionDirection(direction, aError);
+  if (aError.Failed()) {
     return;
   }
   int32_t start, end;
@@ -735,7 +734,7 @@ HTMLTextAreaElement::SetSelectionStart(const Nullable<uint32_t>& aSelectionStart
   if (end < start) {
     end = start;
   }
-  rv = SetSelectionRange(start, end, direction);
+  nsresult rv = SetSelectionRange(start, end, direction);
   if (NS_FAILED(rv)) {
     aError.Throw(rv);
   }
@@ -764,9 +763,8 @@ HTMLTextAreaElement::SetSelectionEnd(const Nullable<uint32_t>& aSelectionEnd,
   }
 
   nsAutoString direction;
-  nsresult rv = GetSelectionDirection(direction);
-  if (NS_FAILED(rv)) {
-    aError.Throw(rv);
+  GetSelectionDirection(direction, aError);
+  if (aError.Failed()) {
     return;
   }
   int32_t start, end;
@@ -778,7 +776,7 @@ HTMLTextAreaElement::SetSelectionEnd(const Nullable<uint32_t>& aSelectionEnd,
   if (start > end) {
     start = end;
   }
-  rv = SetSelectionRange(start, end, direction);
+  nsresult rv = SetSelectionRange(start, end, direction);
   if (NS_FAILED(rv)) {
     aError.Throw(rv);
   }
@@ -806,14 +804,6 @@ DirectionToName(nsITextControlFrame::SelectionDirection dir, nsAString& aDirecti
   }
 }
 
-nsresult
-HTMLTextAreaElement::GetSelectionDirection(nsAString& aDirection)
-{
-  ErrorResult error;
-  GetSelectionDirection(aDirection, error);
-  return error.StealNSResult();
-}
-
 void
 HTMLTextAreaElement::GetSelectionDirection(nsAString& aDirection, ErrorResult& aError)
 {
@@ -836,14 +826,6 @@ HTMLTextAreaElement::GetSelectionDirection(nsAString& aDirection, ErrorResult& a
   aError.Throw(rv);
 }
 
-NS_IMETHODIMP
-HTMLTextAreaElement::SetSelectionDirection(const nsAString& aDirection)
-{
-  ErrorResult error;
-  SetSelectionDirection(aDirection, error);
-  return error.StealNSResult();
-}
-
 void
 HTMLTextAreaElement::SetSelectionDirection(const nsAString& aDirection,
                                            ErrorResult& aError)
diff --git a/dom/interfaces/html/nsIDOMHTMLTextAreaElement.idl b/dom/interfaces/html/nsIDOMHTMLTextAreaElement.idl
index 6e1d324bd672..38bdfd3a4f47 100644
--- a/dom/interfaces/html/nsIDOMHTMLTextAreaElement.idl
+++ b/dom/interfaces/html/nsIDOMHTMLTextAreaElement.idl
@@ -55,7 +55,6 @@ interface nsIDOMHTMLTextAreaElement : nsISupports
 
   void select();
   void setSelectionRange(in long selectionStart, in long selectionEnd, [optional] in DOMString direction);
-           attribute DOMString             selectionDirection;
 
 
   // Mozilla extensions