use goog.bind, safari does not support the native bind

src/ol/pointer/pointereventhandler.js

@@ -68,6 +68,7 @@ ol.pointer.PointerEventHandler = function(element) {
    */
   this.pointerMap = new goog.structs.Map();
 
+
   /**
    * @const
    * @type {ol.structs.WeakMap}
@@ -87,7 +88,7 @@ ol.pointer.PointerEventHandler = function(element) {
   this.eventSources = {};
   this.eventSourceList = [];
 
-  this.boundHandler_ = this.eventHandler_.bind(this);
+  this.boundHandler_ = goog.bind(this.eventHandler_, this);
 
   this.registerSources();
 };
@@ -167,7 +168,7 @@ ol.pointer.PointerEventHandler.prototype.registerSource =
       var handler = s.getHandlerForEvent(e);
 
       if (handler) {
-        this.eventMap[e] = handler.bind(s);
+        this.eventMap[e] = goog.bind(handler, s);
       }
     }, this);
     this.eventSources[name] = s;

src/ol/pointer/touchsource.js

@@ -128,7 +128,7 @@ ol.pointer.TouchSource.prototype.resetClickCount_ = function() {
     this.clickCount = 0;
     this.resetId = null;
   };
-  this.resetId = setTimeout(fn.bind(this), this.CLICK_COUNT_TIMEOUT);
+  this.resetId = setTimeout(goog.bind(fn, this), this.CLICK_COUNT_TIMEOUT);
 };
 
 
@@ -397,12 +397,12 @@ ol.pointer.TouchSource.prototype.dedupSynthMouse_ = function(inEvent) {
     // remember x/y of last touch
     var lt = {x: t.clientX, y: t.clientY};
     lts.push(lt);
-    var fn = (function(lts, lt) {
+    var fn = goog.bind(function(lts, lt) {
       var i = lts.indexOf(lt);
       if (i > -1) {
         lts.splice(i, 1);
       }
-    }).bind(null, lts, lt);
+    }, null, lts, lt);
     setTimeout(fn, this.DEDUP_TIMEOUT);
   }
 };