There are so many adhoc `static NeverDestroyed<const AtomString> ...` things in WebCore code and sometimes we are doing `AtomString { ..., AtomString::CreateFromLiteral }` in a critical path.
After considering about this, I'm currently not sure whether this is better. Since NeverDestroyed<AtomString> can lazily initialize it, (maybe does not matter much).
I have a patch for this, but I'll first do a simpler one, use NeverDestroyed<AtomString> instead of constructing AtomString every time.