There's no direct value in any of those. Google gets very little direct revenue from the things you list nor could they ever hope to transform any of them a significant revenue source in the event their primary revenue stream (ads) went into a downturn.
In my view, Chrome and Android are part of a defensive strategy. Imagine a Google without Chrome or Android. Microsoft and Apple (or someone else) would own the devices that users use to access Google services. They could easily choke Google off if they wanted to. Remember how Apple decided Google Voice should be a web app? As much as people say Google is vulnerable, it would be much more vulnerable. Chrome and Android are worth every penny Google spends on them even if they make zero revenue. Plus, with Chrome and Android, Google not only gets a seat in the table for discussions on how to steer the web forward, Google pretty much drives the discussions on how to steer the web forward. For all the talk about Microsoft et al. using sponsorship money to influence FOSS projects like Maria DB, it is far more effective to do things in house (Google Chrome) as opposite to paying an outsider (Mozilla Firefox).
They don’t have to do that for customers and platforms that use chrome by default.