Adding relList attr to link and anchor element

Source/core/html/HTMLAnchorElement.cpp

Index: Source/core/html/HTMLAnchorElement.cpp
diff --git a/Source/core/html/HTMLAnchorElement.cpp b/Source/core/html/HTMLAnchorElement.cpp
index 1e9b10f7abba352de260955463e3a875eeaf827c..986bc3816c08c90d6ac5acf8de8437c3b9f613e7 100644
--- a/Source/core/html/HTMLAnchorElement.cpp
+++ b/Source/core/html/HTMLAnchorElement.cpp
@@ -280,6 +280,15 @@ void HTMLAnchorElement::setRel(const AtomicString& value)
     // FIXME: Add link relations as they are implemented
     if (newLinkRelations.contains("noreferrer"))
         m_linkRelations |= RelationNoReferrer;
+    if (m_relList)
+        m_relList->setValue(value);
+}
+
+DOMTokenList& HTMLAnchorElement::relList()
+{
+    if (!m_relList)
+        m_relList = RelList::create(this);
+    return *m_relList;
 }
 
 const AtomicString& HTMLAnchorElement::name() const