animatedPropertyTypeSupportsAddition 131 Source/core/svg/SVGAnimateElement.cpp if (animationMode() == FromByAnimation && !animatedPropertyTypeSupportsAddition()) animatedPropertyTypeSupportsAddition 355 Source/core/svg/SVGAnimateElement.cpp if (!animatedPropertyTypeSupportsAddition()) animatedPropertyTypeSupportsAddition 62 Source/core/svg/SVGAnimateElement.h bool animatedPropertyTypeSupportsAddition() const;