Oilpan: move core/workers to oilpan's heap.

Source/core/workers/WorkerNavigator.h

 /*
  * Copyright (C) 2008 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
 #ifndef WorkerNavigator_h
 #define WorkerNavigator_h
 
 #include "bindings/v8/ScriptWrappable.h"
 #include "core/frame/NavigatorBase.h"
+#include "heap/Handle.h"
 #include "platform/Supplementable.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/text/WTFString.h"
 
 namespace WebCore {
 
-class WorkerNavigator FINAL : public RefCounted<WorkerNavigator>, public ScriptWrappable, public NavigatorBase, public Supplementable<WorkerNavigator> {
+class WorkerNavigator FINAL : public RefCountedWillBeGarbageCollectedFinalized<WorkerNavigator>, public ScriptWrappable, public NavigatorBase, public Supplementable<WorkerNavigator> {
+    DECLARE_GC_INFO;
 public:
-    static PassRefPtr<WorkerNavigator> create(const String& userAgent) { return adoptRef(new WorkerNavigator(userAgent)); }
+    static PassRefPtrWillBeRawPtr<WorkerNavigator> create(const String& userAgent)
+    {
+        return adoptRefWillBeNoop(new WorkerNavigator(userAgent));
+    }
     virtual ~WorkerNavigator();
 
     virtual String userAgent() const OVERRIDE;
 
+    void trace(Visitor*) { }
+
 private:
     explicit WorkerNavigator(const String&);
 
     String m_userAgent;
 };
 
 } // namespace WebCore
 
 #endif // WorkerNavigator_h