Inherit EventTarget interface instead of duplicating its code

Source/bindings/tests/results/V8TestException.cpp

Index: Source/bindings/tests/results/V8TestException.cpp
diff --git a/Source/bindings/tests/results/V8TestException.cpp b/Source/bindings/tests/results/V8TestException.cpp
index 93a868442d291cda3d2787cfc9a0e30054088837..5c2dded830f8d8ed1283cd642e321b5c054fadfc 100644
--- a/Source/bindings/tests/results/V8TestException.cpp
+++ b/Source/bindings/tests/results/V8TestException.cpp
@@ -125,18 +125,18 @@ bool V8TestException::HasInstanceInAnyWorld(v8::Handle<v8::Value> value, v8::Iso
 v8::Handle<v8::Object> V8TestException::createWrapper(PassRefPtr<TestException> impl, v8::Handle<v8::Object> creationContext, v8::Isolate* isolate)
 {
     ASSERT(impl.get());
-    ASSERT(DOMDataStore::getWrapper(impl.get(), isolate).IsEmpty());
+    ASSERT(DOMDataStore::getWrapper<V8TestException>(impl.get(), isolate).IsEmpty());
 
-    v8::Handle<v8::Object> wrapper = V8DOMWrapper::createWrapper(creationContext, &info, impl.get(), isolate);
+    v8::Handle<v8::Object> wrapper = V8DOMWrapper::createWrapper(creationContext, &info, toWrappedType(impl.get()), isolate);
     if (UNLIKELY(wrapper.IsEmpty()))
         return wrapper;
     installPerContextProperties(wrapper, impl.get(), isolate);
-    V8DOMWrapper::associateObjectWithWrapper(impl, &info, wrapper, isolate, WrapperConfiguration::Independent);
+    V8DOMWrapper::associateObjectWithWrapper<V8TestException>(impl, &info, wrapper, isolate, WrapperConfiguration::Independent);
     return wrapper;
 }
 void V8TestException::derefObject(void* object)
 {
-    static_cast<TestException*>(object)->deref();
+    fromWrappedType(object)->deref();
 }
 
 } // namespace WebCore