Reduce number of conversions from StringView to String.
Created attachment 456757 [details] Patch
Created attachment 456770 [details] Patch
Comment on attachment 456770 [details] Patch r=me
Committed r292477 (249328@main): <https://commits.webkit.org/249328@main> All reviewed patches have been landed. Closing bug and clearing flags on attachment 456770 [details].
<rdar://problem/91363951>