ServiceWorkerMessageEvent shouldn't hold ScriptValue

third_party/WebKit/Source/modules/serviceworkers/ServiceWorkerMessageEvent.cpp

 // Copyright 2015 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 "modules/serviceworkers/ServiceWorkerMessageEvent.h"
 
 namespace blink {
 
 ServiceWorkerMessageEvent::ServiceWorkerMessageEvent()
 {
 }
 
 ServiceWorkerMessageEvent::ServiceWorkerMessageEvent(const AtomicString& type, const ServiceWorkerMessageEventInit& initializer)
     : Event(type, initializer)
 {
     if (initializer.hasOrigin())
         m_origin = initializer.origin();
     if (initializer.hasLastEventId())
         m_lastEventId = initializer.lastEventId();
     if (initializer.hasSource()) {
         if (initializer.source().isServiceWorker())
             m_sourceAsServiceWorker = initializer.source().getAsServiceWorker();
         else if (initializer.source().isMessagePort())
             m_sourceAsMessagePort = initializer.source().getAsMessagePort();
     }
     if (initializer.hasPorts())
         m_ports = new MessagePortArray(initializer.ports());
-    if (initializer.hasData())
-        m_data = initializer.data();
 }
 
 ServiceWorkerMessageEvent::ServiceWorkerMessageEvent(PassRefPtr<SerializedScriptValue> data, const String& origin, const String& lastEventId, ServiceWorker* source, MessagePortArray* ports)
     : Event(EventTypeNames::message, false, false)
     , m_serializedData(data)
     , m_origin(origin)
     , m_lastEventId(lastEventId)
     , m_sourceAsServiceWorker(source)
     , m_ports(ports)
 {
@@ skipping 36 matching lines @@
 
 DEFINE_TRACE(ServiceWorkerMessageEvent)
 {
     visitor->trace(m_sourceAsServiceWorker);
     visitor->trace(m_sourceAsMessagePort);
     visitor->trace(m_ports);
     Event::trace(visitor);
 }
 
 } // namespace blink