Ah, I see what you're saying. In all of those cases, I'd say Google shifted to working on a component that integrates with other Google services. It does happen that the service-integrated component largely duplicates the features of an existing OSS component, plus adds a lot, but I don't think that's because of any move to close Android.
At this point there's really no need for Google to maintain generic apps for all of those things; there are plenty out there in every category you mentioned. I'm less sure that there are open source apps in all of those categories... but anyone who wants is free to pick up that ball. I suppose it would be nice if Google were to do it, but that's no longer necessary for the success of the platform.
I reiterate that the above represents only my personal opinions. Google pays me to write code, not define platform strategy (except in my narrow area) and certainly not to act as a proper corporate spokesperson. When I say stupid stuff it reflects on me.