After r290229, the following tests have started failing on GTK and WPE: fast/dom/Range/getClientRects.html fast/multicol/newmulticol/hide-box-vertical-lr.html imported/blink/fast/multicol/vertical-lr/float-big-line.html imported/blink/fast/multicol/vertical-lr/float-break.html imported/blink/fast/multicol/vertical-lr/float-content-break.html imported/blink/fast/multicol/vertical-lr/float-edge.html imported/blink/fast/pagination/div-x-vertical-lr-ltr.html imported/blink/fast/pagination/div-x-vertical-lr-rtl.html imported/blink/fast/pagination/viewport-x-vertical-lr-ltr.html imported/blink/fast/pagination/viewport-x-vertical-lr-rtl.html