Add a testcase for a tiled layer inside an iframe
Created attachment 216593 [details] Patch
Comment on attachment 216593 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=216593&action=review > LayoutTests/compositing/tiling/resources/tiled-layer-tall.html:19 > + weird blank space
https://trac.webkit.org/r159060