[CSS Grid Layout] Remove old FIXME in RenderGrid::placeItemsOnGrid()
Created attachment 247106 [details] Patch
FWIW, this has already landed in Blink: https://codereview.chromium.org/925593004/
Comment on attachment 247106 [details] Patch Clearing flags on attachment: 247106 Committed r180500: <http://trac.webkit.org/changeset/180500>
All reviewed patches have been landed. Closing bug.