Support deprecation warnings in shared/service workers

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 21 matching lines @@
 #include "core/events/EventListener.h"
 #include "core/events/EventTarget.h"
 #include "core/frame/DOMTimerCoordinator.h"
 #include "core/frame/DOMWindowBase64.h"
 #include "core/frame/UseCounter.h"
 #include "core/frame/csp/ContentSecurityPolicy.h"
 #include "core/workers/WorkerEventQueue.h"
 #include "platform/heap/Handle.h"
 #include "platform/network/ContentSecurityPolicyParsers.h"
 #include "wtf/Assertions.h"
+#include "wtf/BitVector.h"
 #include "wtf/HashMap.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/AtomicStringHash.h"
 
 namespace blink {
 
 class ConsoleMessage;
@@ skipping 100 matching lines @@
     virtual EventTarget* errorEventTarget() override final;
     virtual void didUpdateSecurityOrigin() override final { }
 
     KURL m_url;
     String m_userAgent;
 
     mutable RefPtrWillBeMember<WorkerConsole> m_console;
     mutable RefPtrWillBeMember<WorkerLocation> m_location;
     mutable RefPtrWillBeMember<WorkerNavigator> m_navigator;
 
+    mutable OwnPtr<BitVector> m_deprecationWarningBits;

[sof, 2015/02/05 08:48:18]

Did you consider factoring UseCounter a bit so as to allow sharing of
representation & recording of measurements? That would also allow inspector to
hook into its support for muting.

[Kunihiko Sakamoto, 2015/02/05 10:35:37]

Factored it to UseCounter::CountBits class.

+
     OwnPtr<WorkerScriptController> m_script;
     WorkerThread* m_thread;
 
     RefPtrWillBeMember<WorkerInspectorController> m_workerInspectorController;
     bool m_closing;
 
     OwnPtrWillBeMember<WorkerEventQueue> m_eventQueue;
 
     OwnPtrWillBeMember<WorkerClients> m_workerClients;
 
     DOMTimerCoordinator m_timers;
 
     double m_timeOrigin;
 
     OwnPtrWillBeMember<ConsoleMessageStorage> m_messageStorage;
 
     unsigned long m_workerExceptionUniqueIdentifier;
     WillBeHeapHashMap<unsigned long, RefPtrWillBeMember<ConsoleMessage>> m_pendingMessages;
 };
 
 DEFINE_TYPE_CASTS(WorkerGlobalScope, ExecutionContext, context, context->isWorkerGlobalScope(), context.isWorkerGlobalScope());
 
 } // namespace blink
 
 #endif // WorkerGlobalScope_h