Specifies an event listener to receive
requestmediaplaystatus events. Those events occur when a remote Bluetooth device queries the current media play status.
instanceOfBluetoothAdapter.onrequestmediaplaystatus = funcRef
funcRef is a function to be called when the
requestmediaplaystatus event occurs.
Not part of any specification yet. It should be discussed as part of the W3C's System Applications Working Group.