Fix MMV dependency on mw.Api

MMV has several undeclared dependencies on core classes which are
ubiquitous enough to be loaded anyway... or not. Apparently
something changed recently in ResourceLoader or the test setup,
and one of the missing dependencies started to cause test errors
(which I can't reproduce locally).

Change-Id: Ifabf682eeff2cf77495cd084ee1386c9b3d02354
Merge "Fix MMV dependency on mw.Api"