Node to scroll towards. Must be a direct child of this node.
Size of the current viewport. The parent should
This node's current padding box.
The child's current padding box.
Estimated new padding box for the child.
fluid.actions.scrollIntoView for recursive scrolling via TreeAction.
Scroll towards the given children node. This should change the parent's properties (without affecting the child) so that the child enters the viewport, or becomes as close to it as possible.