bindings: Retires ScriptWrappable::init, etc.

Source/modules/serviceworkers/Cache.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 "config.h"
 #include "modules/serviceworkers/Cache.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
 
@@ skipping 97 matching lines @@
     case WebServiceWorkerCacheErrorExists:
         return DOMException::create(InvalidAccessError, "Entry already exists.");
     default:
         ASSERT_NOT_REACHED();
         return DOMException::create(NotSupportedError, "Unknown error.");
     }
 }
 
 Cache::Cache(WebServiceWorkerCache* webCache) : m_webCache(webCache)
 {
-    ScriptWrappable::init(this);
 }
 
 } // namespace blink