The shim library code in WebKit/Shared/mac/CookieStorageShimLibrary.{h, cpp} is not referenced in the source tree and can be removed.
Created attachment 339154 [details] Patch
Comment on attachment 339154 [details] Patch Clearing flags on attachment: 339154 Committed r231189: <https://trac.webkit.org/changeset/231189>
All reviewed patches have been landed. Closing bug.
<rdar://problem/39856329>