Shortcuts provider gets 1+% of usage on Windows.  Maybe it would be similarly useful on Android?

It doesn't work on Android simply because the only place the omnibox navigation observer is created is in omnibox_edit_model.cc
https://cs.chromium.org/chromium/src/components/omnibox/browser/omnibox_edit_model.cc?l=609-613
and Android has its own "edit model", built in Java.