Add ol.source.Tile support for wrapping around the x-axis

src/ol/source/bingmapssource.js

@@ -33,7 +33,8 @@ ol.source.BingMaps = function(options) {
     opaque: true,
     projection: ol.proj.get('EPSG:3857'),
     state: ol.source.State.LOADING,
-    tileLoadFunction: options.tileLoadFunction
+    tileLoadFunction: options.tileLoadFunction,
+    wrapX: goog.isDef(options.wrapX) ? options.wrapX : true
   });
 
   /**
@@ -48,12 +49,6 @@ ol.source.BingMaps = function(options) {
    */
   this.maxZoom_ = goog.isDef(options.maxZoom) ? options.maxZoom : -1;
 
-  /**
-   * @private
-   * @type {boolean}
-   */
-  this.wrapX_ = goog.isDef(options.wrapX) ? options.wrapX : true;
-
   var protocol = ol.IS_HTTPS ? 'https:' : 'http:';
   var uri = new goog.Uri(
       protocol + '//dev.virtualearth.net/REST/v1/Imagery/Metadata/' +
@@ -117,7 +112,7 @@ ol.source.BingMaps.prototype.handleImageryMetadataResponse =
 
   var culture = this.culture_;
   this.tileUrlFunction = ol.TileUrlFunction.withTileCoordTransform(
-      tileGrid.createTileCoordTransform({wrapX: this.wrapX_}),
+      tileGrid.createTileCoordTransform(),
       ol.TileUrlFunction.createFromTileUrlFunctions(
           goog.array.map(
               resource.imageUrlSubdomains,