WebKit for Developers
> So first, WebKit parses HTML the same way. <i>Well, except Chromium is the only port so far to enable threaded HTML parsing support.</i><p>Nope. Recent WebKit Nightlies have threaded HTML parsing as well.<p><a href="https://www.webkit.org/blog/2259/last-week-in-webkit-threaded-html-parser-and-background-blending/" rel="nofollow">https://www.webkit.org/blog/2259/last-week-in-webkit-threade...</a>