This will be useful for creating local setting checkboxes in toolbars.
<rdar://problem/35490085>
Created attachment 326698 [details] [Image] Shown in rendering frames view toolbar Added to a GroupNavigationItem, to prevent dividers from being added between every checkbox item. Will check item/label spacing against native apps.
Created attachment 326699 [details] Patch
Comment on attachment 326699 [details] Patch r=me
Comment on attachment 326699 [details] Patch Clearing flags on attachment: 326699 Committed r224766: <https://trac.webkit.org/changeset/224766>
All reviewed patches have been landed. Closing bug.