Oilpan: add [WillBeGarbageCollected] for Element.

Source/bindings/v8/CustomElementWrapper.cpp

Index: Source/bindings/v8/CustomElementWrapper.cpp
diff --git a/Source/bindings/v8/CustomElementWrapper.cpp b/Source/bindings/v8/CustomElementWrapper.cpp
index 8e44d2a99f77a1a82b5cd46fea8e104454e8d0d0..be7b2aee0e215e1c7337eccf3529caa2d5213c65 100644
--- a/Source/bindings/v8/CustomElementWrapper.cpp
+++ b/Source/bindings/v8/CustomElementWrapper.cpp
@@ -86,7 +86,7 @@ v8::Handle<v8::Object> createUpgradeCandidateWrapper(ElementType* element, v8::H
 }
 
 template<typename ElementType, typename WrapperType>
-v8::Handle<v8::Object> CustomElementWrapper<ElementType, WrapperType>::wrap(PassRefPtr<ElementType> element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate, v8::Handle<v8::Object> (*createSpecificWrapper)(ElementType* element, v8::Handle<v8::Object> creationContext, v8::Isolate*))
+v8::Handle<v8::Object> CustomElementWrapper<ElementType, WrapperType>::wrap(PassRefPtrWillBeRawPtr<ElementType> element, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate, v8::Handle<v8::Object> (*createSpecificWrapper)(ElementType* element, v8::Handle<v8::Object> creationContext, v8::Isolate*))
 {
     ASSERT(DOMDataStore::getWrapper<V8Element>(element.get(), isolate).IsEmpty());