Remove destructors from ScriptWrappable objects in modules/

Source/modules/push_messaging/PushManager.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/push_messaging/PushManager.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
@@ skipping 11 matching lines @@
 #include "public/platform/WebPushClient.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 PushManager::PushManager()
 {
     ScriptWrappable::init(this);
 }
 
-PushManager::~PushManager()
-{
-}
-
 ScriptPromise PushManager::registerPushMessaging(ScriptState* scriptState, const String& senderId)
 {
     ASSERT(scriptState->executionContext()->isDocument());
 
     Document* document = toDocument(scriptState->executionContext());
     if (!document->domWindow() || !document->page())
         return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(AbortError, "Document is detached from window."));
 
     blink::WebServiceWorkerProvider* serviceWorkerProvider = NavigatorServiceWorker::serviceWorker(document->domWindow()->navigator())->provider();
     if (!serviceWorkerProvider)
         return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(AbortError, "No Service Worker installed for this document."));
 
     blink::WebPushClient* client = PushController::clientFrom(document->page());
     ASSERT(client);
 
     RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     client->registerPushMessaging(senderId, new CallbackPromiseAdapter<PushRegistration, PushError>(resolver), serviceWorkerProvider);
     return promise;
 }
 
 } // namespace blink