Remove support for the externalResourcesRequired attribute.

Source/core/svg/SVGGElement.cpp

Index: Source/core/svg/SVGGElement.cpp
diff --git a/Source/core/svg/SVGGElement.cpp b/Source/core/svg/SVGGElement.cpp
index 20e2dd875fad6a702b0066b39097f7282c87a14a..ac444b78f2cf63ca79d38db5e97ce95663db6e29 100644
--- a/Source/core/svg/SVGGElement.cpp
+++ b/Source/core/svg/SVGGElement.cpp
@@ -31,10 +31,8 @@
 namespace WebCore {
 
 // Animated property definitions
-DEFINE_ANIMATED_BOOLEAN(SVGGElement, SVGNames::externalResourcesRequiredAttr, ExternalResourcesRequired, externalResourcesRequired)
 
 BEGIN_REGISTER_ANIMATED_PROPERTIES(SVGGElement)
-    REGISTER_LOCAL_ANIMATED_PROPERTY(externalResourcesRequired)
     REGISTER_PARENT_ANIMATED_PROPERTIES(SVGGraphicsElement)
 END_REGISTER_ANIMATED_PROPERTIES
 
@@ -54,8 +52,6 @@ PassRefPtr<SVGGElement> SVGGElement::create(const QualifiedName& tagName, Docume
 bool SVGGElement::isSupportedAttribute(const QualifiedName& attrName)

[Stephen Chennney, 2013/11/06 16:45:43]

This can just return false now. If it's a virtual and the default is false, then
it need not exist at all.

[Erik Dahlström (inactive), 2013/11/07 09:38:04]

Actually it was buggy before, it should have had SVGLangSpace attributes added
here.

 {
     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
-    if (supportedAttributes.isEmpty())
-        SVGExternalResourcesRequired::addSupportedAttributes(supportedAttributes);
     return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
 }