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"
 #include "bindings/core/v8/ScriptState.h"
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "modules/push_messaging/PushController.h"
 #include "modules/push_messaging/PushError.h"
 #include "modules/push_messaging/PushRegistration.h"
 #include "public/platform/WebPushClient.h"
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
 PushManager::PushManager()
 {
     ScriptWrappable::init(this);
 }
 
-PushManager::~PushManager()
-{
-}
+DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(PushManager);
 
 ScriptPromise PushManager::registerPushMessaging(ScriptState* scriptState, const String& senderId)
 {
     ASSERT(scriptState->executionContext()->isDocument());
     RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
     blink::WebPushClient* client = PushController::clientFrom(toDocument(scriptState->executionContext())->page());
     ASSERT(client);
     client->registerPushMessaging(senderId, new CallbackPromiseAdapter<PushRegistration, PushError>(resolver));
     return promise;
 }
 
 } // namespace WebCore