Have bindings layer assume and insist that all interface types are GCed.

third_party/WebKit/Source/core/testing/RefCountedScriptWrappable.cpp

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "core/testing/RefCountedScriptWrappable.h"
-
-namespace blink {
-
-RefCountedScriptWrappable::RefCountedScriptWrappable(const String& string)
-    : m_string(string)
-{
-}
-
-RefCountedScriptWrappable::~RefCountedScriptWrappable()
-{
-}
-
-PassRefPtr<RefCountedScriptWrappable> RefCountedScriptWrappable::create(const String& string)
-{
-    return adoptRef(new RefCountedScriptWrappable(string));
-}
-
-} // namespace blink
-