geolocation directive controls whether the current document is allowed to use the
Geolocation Interface. When this policy is enabled, calls to
watchPosition() will cause those functions' callbacks to be invoked with a
GeolocationPositionError code of
By default, the Geolocation API can be used within top-level documents and their same-origin child frames. This directive allows or prevents cross-origin frames from accessing geolocation. This includes same-origin frames.