Move SVGTests attributes parsing to SVGGraphicsElement

Source/core/svg/SVGImageElement.cpp

Index: Source/core/svg/SVGImageElement.cpp
diff --git a/Source/core/svg/SVGImageElement.cpp b/Source/core/svg/SVGImageElement.cpp
index 6a4ae7006e13d0adf64de8575ffaa750e2fd783a..5b850375234bdfa28a9ce720f4747a8a73590de1 100644
--- a/Source/core/svg/SVGImageElement.cpp
+++ b/Source/core/svg/SVGImageElement.cpp
@@ -75,7 +75,6 @@ bool SVGImageElement::isSupportedAttribute(const QualifiedName& attrName)
 {
     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
     if (supportedAttributes.isEmpty()) {
-        SVGTests::addSupportedAttributes(supportedAttributes);
         SVGLangSpace::addSupportedAttributes(supportedAttributes);
         SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
         SVGURIReference::addSupportedAttributes(supportedAttributes);
@@ -123,8 +122,7 @@ void SVGImageElement::parseAttribute(const QualifiedName& name, const AtomicStri
         setWidthBaseValue(SVGLength::construct(LengthModeWidth, value, parseError, ForbidNegativeLengths));
     else if (name == SVGNames::heightAttr)
         setHeightBaseValue(SVGLength::construct(LengthModeHeight, value, parseError, ForbidNegativeLengths));
-    else if (SVGTests::parseAttribute(name, value)
-             || SVGLangSpace::parseAttribute(name, value)
+    else if (SVGLangSpace::parseAttribute(name, value)
              || SVGExternalResourcesRequired::parseAttribute(name, value)
              || SVGURIReference::parseAttribute(name, value)) {
     } else
@@ -150,9 +148,6 @@ void SVGImageElement::svgAttributeChanged(const QualifiedName& attrName)
     if (isLengthAttribute)
         updateRelativeLengthsInformation();
 
-    if (SVGTests::handleAttributeChange(this, attrName))
-        return;
-
     if (SVGURIReference::isKnownAttribute(attrName)) {
         m_imageLoader.updateFromElementIgnoringPreviousError();
         return;