[worklets] Make WorkerThread handle both Worker and Worklet global scopes.

third_party/WebKit/Source/core/workers/WorkerGlobalScope.h

 /*
  * Copyright (C) 2008, 2009 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 56 matching lines @@
 
     virtual void scriptLoaded(size_t scriptSize, size_t cachedMetadataSize) {}
     virtual void didEvaluateWorkerScript() {}
     virtual void countFeature(UseCounter::Feature) const;
     virtual void countDeprecation(UseCounter::Feature) const;
 
     // Returns null if caching is not supported.
     virtual CachedMetadataHandler* createWorkerScriptCachedMetadataHandler(const KURL& scriptURL, const Vector<char>* metaData) { return nullptr; }
 
     KURL completeURL(const String&) const;
-    void dispose();
+    void dispose() final;
     void exceptionUnhandled(const String& errorMessage, std::unique_ptr<SourceLocation>);
 
     void registerEventListener(V8AbstractEventListener*);
     void deregisterEventListener(V8AbstractEventListener*);
 
     // WorkerGlobalScope
     WorkerGlobalScope* self() { return this; }
     WorkerLocation* location() const;
     WorkerNavigator* navigator() const;
     void close();
@@ skipping 28 matching lines @@
     // WorkerOrWorkletGlobalScope
     ScriptWrappable* getScriptWrappable() const final
     {
         return const_cast<WorkerGlobalScope*>(this);
     }
 
     // Returns true when the WorkerGlobalScope is closing (e.g. via close()
     // method). If this returns true, the worker is going to be shutdown after
     // the current task execution. Workers that don't support close operation
     // should always return false.
-    bool isClosing() const { return m_closing; }
+    bool isClosing() const final { return m_closing; }
 
     const KURL& url() const { return m_url; }
     WorkerThread* thread() const { return m_thread; }
     double timeOrigin() const { return m_timeOrigin; }
 
     WorkerOrWorkletScriptController* scriptController() final { return m_scriptController.get(); }
     WorkerInspectorController* workerInspectorController() { return m_workerInspectorController.get(); }
     WorkerClients* clients() { return m_workerClients.get(); }
     ConsoleMessageStorage* consoleMessageStorage() { return m_consoleMessageStorage.get(); }
 
@@ skipping 48 matching lines @@
     Member<ConsoleMessageStorage> m_consoleMessageStorage;
 
     HeapListHashSet<Member<V8AbstractEventListener>> m_eventListeners;
 };
 
 DEFINE_TYPE_CASTS(WorkerGlobalScope, ExecutionContext, context, context->isWorkerGlobalScope(), context.isWorkerGlobalScope());
 
 } // namespace blink
 
 #endif // WorkerGlobalScope_h