Listen to both mouse and touch events

src/ol/mapbrowserevent.js

@@ -163,14 +163,13 @@ ol.MapBrowserEventHandler = function(map) {
   this.down_ = null;
 
   var element = this.map_.getViewport();
-  if (!ol.BrowserFeature.HAS_TOUCH) {
   this.clickListenerKey_ = goog.events.listen(element,
       [goog.events.EventType.CLICK, goog.events.EventType.DBLCLICK],
       this.click_, false, this);
   this.downListenerKey_ = goog.events.listen(element,
       goog.events.EventType.MOUSEDOWN,
       this.handleMouseDown_, false, this);
-  } else {
+  // touch events
   this.touchListenerKeys_ = [
     goog.events.listen(element, [
       goog.events.EventType.TOUCHSTART,
@@ -185,7 +184,7 @@ ol.MapBrowserEventHandler = function(map) {
       ol.MapBrowserEvent.IEEventType.MSPOINTERUP
     ], this.handleTouchEnd_, false, this)
   ];
-  }
+
 };
 goog.inherits(ol.MapBrowserEventHandler, goog.events.EventTarget);