From 6576a491783626424ee94b3aca406597a3b1d9f7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=89ric=20Lemoine?= <eric.lemoine@gmail.com>
Date: Mon, 19 Aug 2013 14:13:52 +0200
Subject: [PATCH] Make ol.Collection#extend return this

This to be able to do this:

new ol.Map({
  controls: ol.control.defaults().extend([new MyControl()]),
  ...
})
---
 src/ol/collection.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/ol/collection.js b/src/ol/collection.js
index fb3fd57962..e73eb3376e 100644
--- a/src/ol/collection.js
+++ b/src/ol/collection.js
@@ -86,12 +86,14 @@ ol.Collection.prototype.clear = function() {
 
 /**
  * @param {Array} arr Array.
+ * @return {ol.Collection} This collection.
  */
 ol.Collection.prototype.extend = function(arr) {
   var i, ii;
   for (i = 0, ii = arr.length; i < ii; ++i) {
     this.push(arr[i]);
   }
+  return this;
 };