Use CheckedCondition in more places to benefit from Clang Thread Safety Analysis.
Created attachment 429343 [details] Patch
Created attachment 429344 [details] Patch
Created attachment 429345 [details] Patch
Created attachment 429349 [details] Patch
Tools/Scripts/svn-apply failed to apply attachment 429349 [details] to trunk. Please resolve the conflicts and upload a new patch.
Created attachment 429372 [details] Patch
Committed r277904 (238037@main): <https://commits.webkit.org/238037@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 429372 [details].
<rdar://problem/78338633>