If you have a multiline column flexbox with auto height, we should only have a single line. If there's a max-height, we should break at the max height.
Created attachment 131754 [details]
The changes to RenderBox will let me simplify the patch on bug 80069.
Comment on attachment 131754 [details]
Committed r110747: <http://trac.webkit.org/changeset/110747>