setIsAttributeAndTypeExtension  739 Source/core/dom/Document.cpp         CustomElementRegistrationContext::setIsAttributeAndTypeExtension(element.get(), typeExtension);
setIsAttributeAndTypeExtension  781 Source/core/dom/Document.cpp         CustomElementRegistrationContext::setIsAttributeAndTypeExtension(element.get(), typeExtension);
setIsAttributeAndTypeExtension   61 Source/core/dom/custom/CustomElementRegistrationContext.h     static void setIsAttributeAndTypeExtension(Element*, const AtomicString& type);