nsresult rv = nsXFormsControlStub::GetContext(aModelID, aContextNode, aContextPosition, aContextSize);
nsresult rv = nsXFormsBindableControlStub::GetContext(aModelID, aContextNode, aContextPosition, aContextSize);
nsXFormsContextContainer::GetContext(nsAString      &aModelID,                                     nsIDOMNode    **aContextNode,                                     PRInt32        *aContextPosition,                                     PRInt32        *aContextSize){  nsresult rv = nsXFormsControlStub::GetContext(aModelID,                                                aContextNode,                                                aContextPosition,                                                aContextSize);  NS_ENSURE_SUCCESS(rv, rv);  *aContextPosition = mContextPosition;  *aContextSize = mContextSize;  return NS_OK;}