Add @api stable to ol.MapBrowserEvent

src/ol/mapbrowserevent.js

@@ -45,19 +45,19 @@ ol.MapBrowserEvent = function(type, map, browserEvent, opt_frameState) {
   /**
    * @const
    * @type {Event}
-   * @api
+   * @api stable
    */
   this.originalEvent = browserEvent.getBrowserEvent();
 
   /**
    * @type {ol.Pixel}
-   * @api
+   * @api stable
    */
   this.pixel = map.getEventPixel(this.originalEvent);
 
   /**
    * @type {ol.Coordinate}
-   * @api
+   * @api stable
    */
   this.coordinate = map.getCoordinateFromPixel(this.pixel);
 
@@ -69,7 +69,7 @@ goog.inherits(ol.MapBrowserEvent, ol.MapEvent);
  * Prevents the default browser action.
  * @see https://developer.mozilla.org/en-US/docs/Web/API/event.preventDefault
  * @override
- * @api
+ * @api stable
  */
 ol.MapBrowserEvent.prototype.preventDefault = function() {
   goog.base(this, 'preventDefault');
@@ -81,7 +81,7 @@ ol.MapBrowserEvent.prototype.preventDefault = function() {
  * Prevents further propagation of the current event.
  * @see https://developer.mozilla.org/en-US/docs/Web/API/event.stopPropagation
  * @override
- * @api
+ * @api stable
  */
 ol.MapBrowserEvent.prototype.stopPropagation = function() {
   goog.base(this, 'stopPropagation');