From ef0153692e7ecd3601a6942bca78ef3ec560d475 Mon Sep 17 00:00:00 2001
From: Marc Jansen <jansen@terrestris.de>
Date: Tue, 29 Sep 2015 15:28:23 +0200
Subject: [PATCH] Remove goog.isNull in tileurlfunction class

---
 src/ol/tileurlfunction.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/ol/tileurlfunction.js b/src/ol/tileurlfunction.js
index f208ba592e..2353f42454 100644
--- a/src/ol/tileurlfunction.js
+++ b/src/ol/tileurlfunction.js
@@ -49,7 +49,7 @@ ol.TileUrlFunction.createFromTemplate = function(template, tileGrid) {
        * @return {string|undefined} Tile URL.
        */
       function(tileCoord, pixelRatio, projection) {
-        if (goog.isNull(tileCoord)) {
+        if (!tileCoord) {
           return undefined;
         } else {
           return template.replace(zRegEx, tileCoord[0].toString())
@@ -105,7 +105,7 @@ ol.TileUrlFunction.createFromTileUrlFunctions = function(tileUrlFunctions) {
        * @return {string|undefined} Tile URL.
        */
       function(tileCoord, pixelRatio, projection) {
-        if (goog.isNull(tileCoord)) {
+        if (!tileCoord) {
           return undefined;
         } else {
           var h = ol.tilecoord.hash(tileCoord);