Leverage fast HTML parser in DOMParser::parseFromString().
Created attachment 467247 [details] WIP Patch
<rdar://113738031>
Pull request: https://github.com/WebKit/WebKit/pull/16978
Committed 267202@main (c42aaec46c58): <https://commits.webkit.org/267202@main> Reviewed commits have been landed. Closing PR #16978 and removing active labels.