Introduce ES6 iterator for DOM objects.

Source/bindings/core/v8/V8DOMConfiguration.cpp

Index: Source/bindings/core/v8/V8DOMConfiguration.cpp
diff --git a/Source/bindings/core/v8/V8DOMConfiguration.cpp b/Source/bindings/core/v8/V8DOMConfiguration.cpp
index f67dd76451ff290f6afeb94ba3f5786bc0a1a8de..2cb6bf7d7256990454e16b8790599ab8f66182f1 100644
--- a/Source/bindings/core/v8/V8DOMConfiguration.cpp
+++ b/Source/bindings/core/v8/V8DOMConfiguration.cpp
@@ -117,6 +117,16 @@ v8::Handle<v8::FunctionTemplate> V8DOMConfiguration::functionTemplateForMethod(v
     return functionTemplate;
 }
 
+v8::Handle<v8::FunctionTemplate> V8DOMConfiguration::functionTemplateForMethod(v8::Handle<v8::Signature> signature, const SymbolKeyedMethodConfiguration& callback, v8::Isolate* isolate)
+{
+    v8::FunctionCallback functionCallback = callback.callback;
+    if (DOMWrapperWorld::current(isolate).isMainWorld() && callback.callbackForMainWorld)
+        functionCallback = callback.callbackForMainWorld;
+    v8::Local<v8::FunctionTemplate> functionTemplate = v8::FunctionTemplate::New(isolate, functionCallback, v8Undefined(), signature, callback.length);
+    functionTemplate->RemovePrototype();
+    return functionTemplate;
+}
+
 v8::Local<v8::Signature> V8DOMConfiguration::installDOMClassTemplate(v8::Handle<v8::FunctionTemplate> functionDescriptor, const char* interfaceName, v8::Handle<v8::FunctionTemplate> parentClass, size_t fieldCount,
     const AttributeConfiguration* attributes, size_t attributeCount,
     const AccessorConfiguration* accessors, size_t accessorCount,