1. DomName('WebGLRenderingContext.polygonOffset')
  2. DocsEditable()
void polygonOffset(num factor, num units)

Source 

@DomName('WebGLRenderingContext.polygonOffset')
@DocsEditable()
void polygonOffset(num factor, num units) => _blink.BlinkWebGLRenderingContext.instance.polygonOffset_Callback_2_(unwrap_jso(this), factor, units);