gyumin 18d8db4e77 Move DeviceInfo from core to common
In order to use DeviceInfo class in media2, this CL moves the class to
common module. It didn't move the other file in the same package,
DeviceListener, as it's for DeviceComponent but media2 SessionPlayer
doesn't have components as it is already flattened. PlayerCallback will
have equivalent methods of DeviceListener.

PiperOrigin-RevId: 321154997
2020-07-24 10:32:24 +01:00
..
2020-07-24 10:32:24 +01:00