Add more detailed validation of geolocation coordinates. (#902)

* Add more detailed validation of geolocation coordinates.

* Add validation for "latitude" and "longitude".

Author: lutien

index.bs

@@ -5629,13 +5629,13 @@ The <dfn export for=commands>emulation.setGeolocationOverride</dfn> command modi
       }
 
       emulation.GeolocationCoordinates = {
-         latitude: float,
-         longitude: float,
-         ? accuracy: float .default 1.0,
+         latitude: -90.0..90.0,
+         longitude: -180.0..180.0,
+         ? accuracy: (float .ge 0.0) .default 1.0,
          ? altitude: float / null .default null,
-         ? altitudeAccuracy: float / null .default null,
-         ? heading: float / null .default null,
-         ? speed: float / null .default null,
+         ? altitudeAccuracy: (float .ge 0.0) / null .default null,
+         ? heading: (0.0...360.0) / null .default null,
+         ? speed: (float .ge 0.0) / null .default null,
       }
     </pre>
    </dd>