RenderLimitedBox({RenderBox child, double maxWidth: double.INFINITY, double maxHeight: double.INFINITY })

Creates a render box that imposes a maxWidth or maxHeight on its child if the child is otherwise unconstrained.

The maxWidth and maxHeight arguments not be null and must be non-negative.

Source 

RenderLimitedBox({
  RenderBox child,
  double maxWidth: double.INFINITY,
  double maxHeight: double.INFINITY
}) : _maxWidth = maxWidth, _maxHeight = maxHeight, super(child) {
  assert(maxWidth != null && maxWidth >= 0.0);
  assert(maxHeight != null && maxHeight >= 0.0);
}