Implement DOM methods: prepend, append, after, before and replaceWith.

third_party/WebKit/Source/core/dom/ParentNode.h

Index: third_party/WebKit/Source/core/dom/ParentNode.h
diff --git a/third_party/WebKit/Source/core/dom/ParentNode.h b/third_party/WebKit/Source/core/dom/ParentNode.h
index 92bce33357b2519f812858275cb2185dec11095c..5530c58eab0fe11dc0a9f9fda88ceae1624822eb 100644
--- a/third_party/WebKit/Source/core/dom/ParentNode.h
+++ b/third_party/WebKit/Source/core/dom/ParentNode.h
@@ -63,6 +63,16 @@ public:
         return count;
     }
 
+    static void prepend(Node& node, const HeapVector<NodeOrString>& nodes, ExceptionState& exceptionState)
+    {
+        return node.prepend(nodes, exceptionState);
+    }
+
+    static void append(Node& node, const HeapVector<NodeOrString>& nodes, ExceptionState& exceptionState)
+    {
+        return node.append(nodes, exceptionState);
+    }
+
     static Element* querySelector(ContainerNode& node, const AtomicString& selectors, ExceptionState& exceptionState)
     {
         return node.querySelector(selectors, exceptionState);