void fillText(String text, num x, num y, [num maxWidth])

Source 

void fillText(String text, num x, num y, [num maxWidth]) {
  if (maxWidth != null) {
    _blink.BlinkCanvasRenderingContext2D.instance.fillText_Callback_4_(this, text, x, y, maxWidth);
    return;
  }
  _blink.BlinkCanvasRenderingContext2D.instance.fillText_Callback_3_(this, text, x, y);
  return;
}