Batch local storage database writes using transactions.
Created attachment 431220 [details] Patch
Comment on attachment 431220 [details] Patch r=me
Created attachment 431229 [details] Patch
Created attachment 431234 [details] Patch
Committed r278786 (238743@main): <https://commits.webkit.org/238743@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 431234 [details].
<rdar://problem/79220513>