Updated GoogleMaps.cn1lib to match version 22 of extensions repository.

Author: shannah

GoogleMaps.cn1lib

@@ -119,7 +119,7 @@
                     this.ready(function() {
                         var topRight=this.map.getProjection().fromLatLngToPoint(this.map.getBounds().getNorthEast()); 
                         var bottomLeft=this.map.getProjection().fromLatLngToPoint(this.map.getBounds().getSouthWest()); 
-                        var scale=Math.pow(2,this.map.getZoom());
+                        var scale=Math.pow(2,this.map.getZoom()) * window.devicePixelRatio;
                         this.lastPoint = this.map.getProjection().fromLatLngToPoint(new google.maps.LatLng(lat, lon));
                         this.lastPoint = new google.maps.Point((this.lastPoint.x-bottomLeft.x)*scale,(this.lastPoint.y-topRight.y)*scale); 
                     });