While we round the offset and translate the context with it, the subpixel value gets lost. RenderLayer::paintNamedFlowThreadInsideRegion()
Created attachment 235842 [details] Patch
Comment on attachment 235842 [details] Patch Clearing flags on attachment: 235842 Committed r171896: <http://trac.webkit.org/changeset/171896>
All reviewed patches have been landed. Closing bug.