Allow for event dispatching when in non-interactive states.

We need to allow for event dispatching in non-interactive states so
that we can enable a richer set of interactions when a device is
dozing (i.e. is in a low power state with an Always-on-Display).

Bug: 17167296
Change-Id: I8ae0f544a8106cb91ff38c2309b8b57cbe2f2c72