For devices that monitor orientation (primarily for channel assignment
to stereo speakers):
The com.android.server.policy.WindowOrientationListener API is more
power efficient than simply monitoring the device's orientation. When
supported, use it instead of android.view.OrientationEventListener.
When WindowOrientationListener reports an orientation change, start
a thread to poll the UI orientation, as its change may lag behind
the observed rotation. Gradually increasing delays between polls
are stored in a table.
Bug 24415763
Change-Id: I69bf68da6107af24cd02a48961dd17ceab557816
24806db8f6