internal void Layout(IntRectangle position)
{
var renderer = _view as IVisualElementRenderer;
renderer.Element.Layout(position.ToFormsRectangle(_layout._context));
// causes the private LAYOUT_REQUIRED flag to be set so we can be sure the Layout call will properly chain through to all children
Measure(position.Width, position.Height);
_layout.LayoutDecorated(_view,
left: position.Left,
top: position.Top,
right: position.Right,
bottom: position.Bottom
);
}