Shrink some critical style related data structures.
Created attachment 443502 [details] Patch
Created attachment 443508 [details] Patch
Created attachment 443509 [details] Patch
Committed r285392 (243949@main): <https://commits.webkit.org/243949@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 443509 [details].
<rdar://problem/85126679>
Re-opened since this is blocked by bug 232828
This change appears to have caused a layout test regression, would be good to investigate before re-landing: https://bugs.webkit.org/show_bug.cgi?id=232827
Created attachment 443915 [details] Patch for landing
ChangeLog entry in Source/WebCore/ChangeLog contains OOPS!.
Created attachment 443916 [details] Patch for landing
Committed r285622 (244123@main): <https://commits.webkit.org/244123@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 443916 [details].