It seems we can use NaN as missing value for "step" in StepRange rather than using NumberWithDecimalPlacesOrMissing.
Created attachment 146484 [details] Patch 1
Comment on attachment 146484 [details] Patch 1 Could you review this patch? Thanks in advance. * Local build with all enabling all input type. * It seems EWS bots are busy.
Comment on attachment 146484 [details] Patch 1 ok
Comment on attachment 146484 [details] Patch 1 Clearing flags on attachment: 146484 Committed r119809: <http://trac.webkit.org/changeset/119809>
All reviewed patches have been landed. Closing bug.