Enable the WebIDL [Exposed] annotation on an interface's members.

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 49 matching lines @@
     class WorkerGlobalScope : public RefCountedWillBeRefCountedGarbageCollected<WorkerGlobalScope>, public SecurityContext, public ExecutionContext, public ExecutionContextClient, public WillBeHeapSupplementable<WorkerGlobalScope>, public EventTargetWithInlineData, public DOMWindowBase64 {
         WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(WorkerGlobalScope);
         REFCOUNTED_EVENT_TARGET(WorkerGlobalScope);
     public:
         virtual ~WorkerGlobalScope();
 
         virtual bool isWorkerGlobalScope() const OVERRIDE FINAL { return true; }
 
         virtual ExecutionContext* executionContext() const OVERRIDE FINAL;
 
-        virtual bool isSharedWorkerGlobalScope() const { return false; }
-        virtual bool isDedicatedWorkerGlobalScope() const { return false; }
-        virtual bool isServiceWorkerGlobalScope() const { return false; }
         virtual void countFeature(UseCounter::Feature) const;
         virtual void countDeprecation(UseCounter::Feature) const;
 
         const KURL& url() const { return m_url; }
         KURL completeURL(const String&) const;
 
         virtual String userAgent(const KURL&) const OVERRIDE FINAL;
         virtual void disableEval(const String& errorMessage) OVERRIDE FINAL;
 
         WorkerScriptController* script() { return m_script.get(); }
@@ skipping 96 matching lines @@
 
         double m_timeOrigin;
         TerminationObserver* m_terminationObserver;
     };
 
 DEFINE_TYPE_CASTS(WorkerGlobalScope, ExecutionContext, context, context->isWorkerGlobalScope(), context.isWorkerGlobalScope());
 
 } // namespace blink
 
 #endif // WorkerGlobalScope_h