[Oilpan] Apply RefCountedGarbageCollectedEventTarget on AbstractWorker

Source/core/workers/SharedWorker.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 36 matching lines @@
 #include "platform/weborigin/SecurityOrigin.h"
 
 namespace blink {
 
 inline SharedWorker::SharedWorker(ExecutionContext* context)
     : AbstractWorker(context)
     , m_isBeingConnected(false)
 {
 }
 
-PassRefPtrWillBeRawPtr<SharedWorker> SharedWorker::create(ExecutionContext* context, const String& url, const String& name, ExceptionState& exceptionState)
+SharedWorker* SharedWorker::create(ExecutionContext* context, const String& url, const String& name, ExceptionState& exceptionState)
 {
     ASSERT(isMainThread());
     ASSERT_WITH_SECURITY_IMPLICATION(context->isDocument());
 
     UseCounter::count(context, UseCounter::SharedWorkerStart);
 
-    RefPtrWillBeRawPtr<SharedWorker> worker = adoptRefWillBeNoop(new SharedWorker(context));
+    SharedWorker* worker = new SharedWorker(context);
 
     MessageChannel* channel = MessageChannel::create(context);
     worker->m_port = channel->port1();
     OwnPtr<WebMessagePortChannel> remotePort = channel->port2()->disentangle();
     ASSERT(remotePort);
 
     worker->suspendIfNeeded();
 
     // We don't currently support nested workers, so workers can only be created from documents.
     Document* document = toDocument(context);
     if (!document->securityOrigin()->canAccessSharedWorkers()) {
         exceptionState.throwSecurityError("Access to shared workers is denied to origin '" + document->securityOrigin()->toString() + "'.");
         return nullptr;
     }
 
     KURL scriptURL = worker->resolveURL(url, exceptionState);
     if (scriptURL.isEmpty())
         return nullptr;
 
     if (document->frame()->loader().client()->sharedWorkerRepositoryClient())
-        document->frame()->loader().client()->sharedWorkerRepositoryClient()->connect(worker.get(), remotePort.release(), scriptURL, name, exceptionState);
+        document->frame()->loader().client()->sharedWorkerRepositoryClient()->connect(worker, remotePort.release(), scriptURL, name, exceptionState);
 
-    return worker.release();
+    return worker;
 }
 
 SharedWorker::~SharedWorker()
 {
 }
 
 const AtomicString& SharedWorker::interfaceName() const
 {
     return EventTargetNames::SharedWorker;
 }
 
 bool SharedWorker::hasPendingActivity() const
 {
     return m_isBeingConnected;
 }
 
 DEFINE_TRACE(SharedWorker)
 {
-#if ENABLE(OILPAN)
     visitor->trace(m_port);
     HeapSupplementable<SharedWorker>::trace(visitor);
-#endif
     AbstractWorker::trace(visitor);
 }
 
 } // namespace blink