We should update the grid layout properties in: http://trac.webkit.org/browser/trunk/Source/WebInspectorUI/UserInterface/Models/CSSKeywordCompletions.js#L779 There're some strange thins like "grid-after" that are no longer in the spec since a lot of time ago. Other new stuff like grid gaps properties are missing.
<rdar://problem/25998768>
Created attachment 278405 [details] Patch
Comment on attachment 278405 [details] Patch Clearing flags on attachment: 278405 Committed r200575: <http://trac.webkit.org/changeset/200575>
All reviewed patches have been landed. Closing bug.