[dom] support iterable<> NodeList

Source/core/dom/NodeList.h

Index: Source/core/dom/NodeList.h
diff --git a/Source/core/dom/NodeList.h b/Source/core/dom/NodeList.h
index ab50dd22ed1e7ad25e58e40fc868a9f9d845d935..7581db799b3dc95da18d3b03e6cb088e1e468011 100644
--- a/Source/core/dom/NodeList.h
+++ b/Source/core/dom/NodeList.h
@@ -24,15 +24,14 @@
 #ifndef NodeList_h
 #define NodeList_h
 
+#include "bindings/core/v8/Iterable.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/CoreExport.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 
-class Node;
-
-class CORE_EXPORT NodeList : public RefCountedWillBeGarbageCollectedFinalized<NodeList>, public ScriptWrappable {
+class CORE_EXPORT NodeList : public RefCountedWillBeGarbageCollectedFinalized<NodeList>, public ScriptWrappable, public ValueIterable<Node*> {
     DEFINE_WRAPPERTYPEINFO();
 public:
     virtual ~NodeList() { }
@@ -51,6 +50,9 @@ public:
 
 protected:
     NodeList() { }
+
+private:
+    IterationSource* startIteration(ScriptState*, ExceptionState&) override;
 };
 
 } // namespace blink