code: function updateBounds() {
           var target = this.getScreenCanvas();
           var rect;
  
           if (typeof target.getBoundingClientRect === "undefined") {
             rect = {
               left: 0,
               top: 0,
               width: 0,
               height: 0
             };
           } else {
             rect = target.getBoundingClientRect();
           }
  
           this.parentBounds.setShape(rect.left, rect.top, rect.width, rect.height);
         }
docs: update the bounds (size and position) of the parent container.
  (this can be manually called in case of manual page layout modification not triggering a resize event)
  @name updateBounds
  @memberOf me.Renderer.prototype
  @function