Oilpan: add transition types to remaining Fetch and ServiceWorker objects

Source/modules/serviceworkers/ServiceWorkerClients.h

 // 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.
 
 #ifndef ServiceWorkerClients_h
 #define ServiceWorkerClients_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
+#include "platform/heap/Handle.h"
 #include "public/platform/WebServiceWorkerClientsInfo.h"
 #include "wtf/Forward.h"
 
 namespace WebCore {
 
 class Client;
 class ExecutionContext;
 class ScriptState;
 class ScriptPromise;
 
-class ServiceWorkerClients FINAL : public RefCounted<ServiceWorkerClients>, public ScriptWrappable {
+class ServiceWorkerClients FINAL : public RefCountedWillBeGarbageCollected<ServiceWorkerClients>, public ScriptWrappable {
+    DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(ServiceWorkerClients);
 public:
-    static PassRefPtr<ServiceWorkerClients> create();
-    ~ServiceWorkerClients();
+    static PassRefPtrWillBeRawPtr<ServiceWorkerClients> create();
 
     // ServiceWorkerClients.idl
     ScriptPromise getServiced(ScriptState*);
 
+    void trace(Visitor*) { }
+
 private:
     ServiceWorkerClients();
 };
 
 } // namespace WebCore
 
 #endif // ServiceWorkerClients_h