bindings: Adds virtual ScriptWrappable::wrap method.

Source/modules/serviceworkers/CacheStorage.h

 // 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.
 
 #ifndef CacheStorage_h
 #define CacheStorage_h
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "wtf/Forward.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 
 class WebServiceWorkerCacheStorage;
 
 class CacheStorage FINAL : public RefCountedWillBeGarbageCollected<CacheStorage>, public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
     WTF_MAKE_NONCOPYABLE(CacheStorage);
 public:
     static PassRefPtrWillBeRawPtr<CacheStorage> create(WebServiceWorkerCacheStorage*);
 
     ScriptPromise get(ScriptState*, const String& cacheName);
     ScriptPromise has(ScriptState*, const String& cacheName);
     ScriptPromise createFunction(ScriptState*, const String& cacheName);
     ScriptPromise deleteFunction(ScriptState*, const String& cacheName);
     ScriptPromise keys(ScriptState*);
 
     void trace(Visitor*) { }
 
 private:
     explicit CacheStorage(WebServiceWorkerCacheStorage*);
 
     WebServiceWorkerCacheStorage* m_webCacheStorage;
 };
 
 } // namespace blink
 
 #endif // CacheStorage_h