These methods are guarded with PLATFORM(MAC) and have no definitions.
Created attachment 374993 [details] Patch
Created attachment 374994 [details] Patch
Comment on attachment 374994 [details] Patch r=me
Comment on attachment 374994 [details] Patch Clearing flags on attachment: 374994 Committed r247883: <https://trac.webkit.org/changeset/247883>
All reviewed patches have been landed. Closing bug.
<rdar://problem/53664619>