Google sometimes gives us a hint of what it's working on if you're willing to dig for it. Buried in the new Chrome Beta for Android update is something called contextual search. It's not completely functional right now, but you can take a peek at some aspects of it.
To enable contextual search in Chrome Beta, go to chrome://flags/#contextual-search in the address bar. Tap enable to activate this feature, then restart the browser using the button that pops up.