Position: Increase scrollbar test div to handle larger scrollbars

Fixes #15106 Closes jquerygh-1811

Author: scottgonzalez

ui/position.js

@@ -84,9 +84,9 @@ $.position = {
 return cachedScrollbarWidth;
 }
 var w1, w2,
-div = $( "<div " +
-"style='display:block;position:absolute;width:50px;height:50px;overflow:hidden;'>" +
-"<div style='height:100px;width:auto;'></div></div>" ),
+div = $( "<div style=" +
+"'display:block;position:absolute;width:200px;height:200px;overflow:hidden;'>" +
+"<div style='height:300px;width:auto;'></div></div>" ),
 innerDiv = div.children()[ 0 ];
 
 $( "body" ).append( div );