Remove SessionID::emptySessionID()
Created attachment 376490 [details] Patch
Created attachment 376498 [details] Patch
Created attachment 376501 [details] Patch
Created attachment 376512 [details] Patch
<rdar://problem/54411240>
Comment on attachment 376512 [details] Patch Need to update the patch for wincairo, which seems straightforward. Adding r? in the meantime.
Created attachment 376668 [details] WinCairo fix
Created attachment 376687 [details] Rebasing
Comment on attachment 376687 [details] Rebasing Clearing flags on attachment: 376687 Committed r248854: <https://trac.webkit.org/changeset/248854>
All reviewed patches have been landed. Closing bug.