Fix up objects code

scrollcontainer.go

@@ -133,6 +133,7 @@ func (this *ScrollContainer) handleScroll (x, y float64) {
 		Sub(image.Pt(int(x), int(y))))
 }
 
+// TODO: remove this and replace it with something from the layouts package
 type scrollContainerLayout struct {
 	root       tomo.ContentObject
 	horizontal *Scrollbar
@@ -183,6 +184,14 @@ func (this *scrollContainerLayout) Arrange (hints tomo.LayoutHints, boxes []tomo
 	}
 }
 
+func (this *scrollContainerLayout) RecommendedHeight (tomo.LayoutHints, []tomo.Box, int) int {
+	return 0
+}
+
+func (this *scrollContainerLayout) RecommendedWidth (tomo.LayoutHints, []tomo.Box, int) int {
+	return 0
+}
+
 func max (x, y int) int {
 	if x > y { return x }
 	return y