We’ve already knew that some sort of integration is in the pipeline, but now we have the clearest proof yet in the form of an unfinished feature that can be accessed via a debug menu in the Hangouts app.
Google Drive gets updated with a few tweaks, minor Hangouts update too
It's update Wednesday and not only is Google Hangouts pushing out a small update, Google Drive is receiving an update as well. The latter of these is more than just bug fixes, with at least a few noticeable changes.
Google Hangouts update rolling out, brings custom message sounds and SMS block list