tinymce.full.js
function () {
        var btnElm = this.getEl().firstChild,
          btnStyle;

        if (btnElm) {
          btnStyle = btnElm.style;
          btnStyle.width = btnStyle.height = "100%";
        }

        this._super();
      }
function () {
        var btnElm = this.getEl().firstChild,
          btnStyle;

        if (btnElm) {
          btnStyle = btnElm.style;
          btnStyle.width = btnStyle.height = "100%";
        }

        this._super();
      }
function ( ) { var btnElm = this . getEl ( ) . firstChild , btnStyle ; if ( btnElm ) { btnStyle = btnElm . style ; btnStyle . width = btnStyle . height = "100%" ; } this . _super ( ) ; }
Repaints the button for example after it's been resizes by a layout engine.

@method repaint
Repaints the button for example after it s been resizes by a layout engine .