NS_INIT_ISUPPORTS();
nsSVGPathSegCurvetoQuadraticRel::nsSVGPathSegCurvetoQuadraticRel(float x, float y,                                                                 float x1, float y1)    : mX(x), mY(y), mX1(x1), mY1(y1){  NS_INIT_ISUPPORTS();}