You can't link 32-bit libraries with 64-bit applications, so the short
answer is no. You'd have to wait until a) Chromium supports 64-bit
builds and b) Berkelium is updated to work with that version.
You could, of course, compile a 32-bit binary as long as nothing else
in the project requires 64-bit. It'll run fine on 64-bit Windows.
-Ewen