Two seconds of googling would have confirmed that Vim has its own Mason mode with separate perl and HTML highlighting. It may not be implemented in the same way as the Emacs one, but it sounds pretty good.

Two seconds of reading what you've googled shows you just went looking for mason support: mmm-mode in theory at least, allows you to use multiple modes together in any combination. Just supporting mason isn't a bad trick by itself, but being able to mix and match anything in vim is what I'm a bit skeptical about.

I could be wrong -- it's not like I'm a vim expert -- but it'll take me more that a couple of seconds to find out.