4 The documents in the src attributes of the iframes below only contain comments. This test is for a bug where we would only construct LayoutViews for such iframes. We need to propery construct an empty frame instead, so the LayoutView should have a LayoutBlockFlow and LayoutBlockFlow below it in the dump of the RenderTree.
6 <IFRAME src=
"resources/comment.html" width=
"100%" height=
"10" frameborder=
1 ></IFRAME>
9 <IFRAME src=
"resources/commentX.xhtml" width=
"100%" height=
"10" frameborder=
1 ></IFRAME>