From 2b84e0f2457fbc8c58b3bce642169d6803b2355b Mon Sep 17 00:00:00 2001
From: Marc Jansen <jansen@terrestris.de>
Date: Tue, 29 Sep 2015 15:24:25 +0200
Subject: [PATCH] Remove goog.isNull in overlay class

---
 src/ol/overlay.js | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/ol/overlay.js b/src/ol/overlay.js
index 1d85f00566..fdb57047b3 100644
--- a/src/ol/overlay.js
+++ b/src/ol/overlay.js
@@ -254,7 +254,7 @@ ol.Overlay.prototype.handleElementChanged = function() {
  * @protected
  */
 ol.Overlay.prototype.handleMapChanged = function() {
-  if (!goog.isNull(this.mapPostrenderListenerKey_)) {
+  if (this.mapPostrenderListenerKey_) {
     goog.dom.removeNode(this.element_);
     goog.events.unlistenByKey(this.mapPostrenderListenerKey_);
     this.mapPostrenderListenerKey_ = null;
@@ -366,7 +366,7 @@ ol.Overlay.prototype.panIntoView_ = function() {
   goog.asserts.assert(this.autoPan, 'this.autoPan should be true');
   var map = this.getMap();
 
-  if (map === undefined || goog.isNull(map.getTargetElement())) {
+  if (map === undefined || !map.getTargetElement()) {
     return;
   }
 
@@ -409,7 +409,7 @@ ol.Overlay.prototype.panIntoView_ = function() {
         centerPx[1] + delta[1]
       ];
 
-      if (!goog.isNull(this.autoPanAnimation_)) {
+      if (this.autoPanAnimation_) {
         this.autoPanAnimation_.source = center;
         map.beforeRender(ol.animation.pan(this.autoPanAnimation_));
       }
@@ -489,7 +489,7 @@ ol.Overlay.prototype.updatePixelPosition = function() {
  * @protected
  */
 ol.Overlay.prototype.updateRenderedPosition = function(pixel, mapSize) {
-  goog.asserts.assert(!goog.isNull(pixel), 'pixel should not be null');
+  goog.asserts.assert(pixel, 'pixel should not be null');
   goog.asserts.assert(mapSize !== undefined, 'mapSize should be defined');
   var style = this.element_.style;
   var offset = this.getOffset();