Move default tile load function to tile module

src/ol/source/vectortile.js

@@ -5,7 +5,6 @@ goog.require('ol.Tile');
 goog.require('ol.VectorTile');
 goog.require('ol.events');
 goog.require('ol.events.EventType');
-goog.require('ol.featureloader');
 goog.require('ol.size');
 goog.require('ol.source.UrlTile');
 
@@ -38,7 +37,7 @@ ol.source.VectorTile = function(options) {
     state: options.state,
     tileGrid: options.tileGrid,
     tileLoadFunction: options.tileLoadFunction ?
-        options.tileLoadFunction : ol.source.VectorTile.defaultTileLoadFunction,
+        options.tileLoadFunction : ol.VectorTile.defaultLoadFunction,
     tileUrlFunction: options.tileUrlFunction,
     tilePixelRatio: options.tilePixelRatio,
     url: options.url,
@@ -121,12 +120,3 @@ ol.source.VectorTile.prototype.getTilePixelSize = function(z, pixelRatio, projec
   var tileSize = ol.size.toSize(this.tileGrid.getTileSize(z));
   return [Math.round(tileSize[0] * pixelRatio), Math.round(tileSize[1] * pixelRatio)];
 };
-
-
-/**
- * @param {ol.VectorTile} vectorTile Vector tile.
- * @param {string} url URL.
- */
-ol.source.VectorTile.defaultTileLoadFunction = function(vectorTile, url) {
-  vectorTile.setLoader(ol.featureloader.tile(url, vectorTile.getFormat()));
-};

src/ol/vectortile.js

@@ -3,6 +3,7 @@ goog.provide('ol.VectorTile');
 goog.require('ol');
 goog.require('ol.Tile');
 goog.require('ol.dom');
+goog.require('ol.featureloader');
 
 
 /**
@@ -186,3 +187,12 @@ ol.VectorTile.prototype.setState = function(tileState) {
 ol.VectorTile.prototype.setLoader = function(loader) {
   this.loader_ = loader;
 };
+
+
+/**
+ * @param {ol.VectorTile} tile Vector tile.
+ * @param {string} url URL.
+ */
+ol.VectorTile.defaultLoadFunction = function(tile, url) {
+  tile.setLoader(ol.featureloader.tile(url, tile.getFormat()));
+};