Thanks to Matthias Rampke, Chromium builds on DragonFly. He’s posted with notes and even a screenshot, and has a working i386 binary.
“It starts up  but doesn’t really work yet; it doesn’t load any page, whether from the net or internal (such as settings).”
Success indeed :-P
I’m certainly not downplaying his work (Chromium on DragonFly will be very nice), its just your choice of title sucks.
Read the next link – it works just fine on i386.
x86_64 has problems, but that seems to happen on I think NetBSD too, so it’s not necessarily anything to do with DragonFly.
DragonFly BSD Digest