Gen index getter by unified way instead of using several helper function in some special cases.

Source/bindings/tests/results/V8TestEventTarget.cpp

Index: Source/bindings/tests/results/V8TestEventTarget.cpp
diff --git a/Source/bindings/tests/results/V8TestEventTarget.cpp b/Source/bindings/tests/results/V8TestEventTarget.cpp
index dbda8ce06d93d8b497f78423b2a48ab5d5a77e05..22c9893f4c040e26d8928df59af8f29667ea0fbe 100644
--- a/Source/bindings/tests/results/V8TestEventTarget.cpp
+++ b/Source/bindings/tests/results/V8TestEventTarget.cpp
@@ -187,7 +187,7 @@ static v8::Persistent<v8::FunctionTemplate> ConfigureV8TestEventTargetTemplate(v
     v8::Local<v8::ObjectTemplate> proto = desc->PrototypeTemplate();
     UNUSED_PARAM(instance); // In some cases, it will not be used.
     UNUSED_PARAM(proto); // In some cases, it will not be used.
-    setCollectionIndexedGetter<TestEventTarget, Node>(desc);
+    desc->InstanceTemplate()->SetIndexedPropertyHandler(V8TestEventTarget::indexedPropertyGetter, 0, 0, 0, nodeCollectionIndexedPropertyEnumerator<TestEventTarget>);
     desc->InstanceTemplate()->SetNamedPropertyHandler(V8TestEventTarget::namedPropertyGetter, 0, 0, 0, 0);
     desc->InstanceTemplate()->MarkAsUndetectable();
 
@@ -228,6 +228,15 @@ bool V8TestEventTarget::HasInstanceInAnyWorld(v8::Handle<v8::Value> value, v8::I
         || V8PerIsolateData::from(isolate)->hasInstance(&info, value, WorkerWorld);
 }
 
+v8::Handle<v8::Value> V8TestEventTarget::indexedPropertyGetter(uint32_t index, const v8::AccessorInfo& info)
+{
+    ASSERT(V8DOMWrapper::maybeDOMWrapper(info.Holder()));
+    TestEventTarget* collection = toNative(info.Holder());
+    RefPtr<Node> element = collection->item(index);
+    if (!element)
+        return v8Undefined();
+    return toV8(element.release(), info.Holder(), info.GetIsolate());
+}
 EventTarget* V8TestEventTarget::toEventTarget(v8::Handle<v8::Object> object)
 {
     return toNative(object);