Document no longer needs to store a SessionID, now that we have a single session per WebProcess.
Created attachment 379201 [details] Patch
Comment on attachment 379201 [details] Patch r=me
Comment on attachment 379201 [details] Patch Clearing flags on attachment: 379201 Committed r250153: <https://trac.webkit.org/changeset/250153>
All reviewed patches have been landed. Closing bug.
<rdar://problem/55572582>