Add ol.BrowserFeature.HAS_DEVICE_ORIENTATION

src/ol/deviceorientation.js

@@ -3,6 +3,7 @@ goog.provide('ol.DeviceOrientationProperty');
 
 goog.require('goog.events');
 goog.require('goog.math');
+goog.require('ol.BrowserFeature');
 goog.require('ol.Object');
 
 
@@ -111,15 +112,6 @@ ol.DeviceOrientation.prototype.disposeInternal = function() {
 };
 
 
-/**
- * Indicates if DeviceOrientation is supported in the user's browser.
- * @const
- * @type {boolean}
- * @todo stability experimental
- */
-ol.DeviceOrientation.SUPPORTED = 'DeviceOrientationEvent' in goog.global;
-
-
 /**
  * @private
  * @param {goog.events.BrowserEvent} browserEvent Event.
@@ -230,7 +222,7 @@ goog.exportProperty(
  * @private
  */
 ol.DeviceOrientation.prototype.handleTrackingChanged_ = function() {
-  if (ol.DeviceOrientation.SUPPORTED) {
+  if (ol.BrowserFeature.HAS_DEVICE_ORIENTATION) {
     var tracking = this.getTracking();
     if (tracking && goog.isNull(this.listenerKey_)) {
       this.listenerKey_ = goog.events.listen(goog.global, 'deviceorientation',