Revert "Extract ContextLifecycleNotifier from ScriptExecutionContext."

Source/core/dom/ContextLifecycleNotifier.h

Index: Source/core/dom/ContextLifecycleNotifier.h
diff --git a/Source/core/dom/ContextLifecycleNotifier.h b/Source/core/dom/ContextLifecycleNotifier.h
deleted file mode 100644
index cfa8523bc5f7a2f871cbb95f3e8a85102c437973..0000000000000000000000000000000000000000
--- a/Source/core/dom/ContextLifecycleNotifier.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * Copyright (C) 2008 Apple Inc. All Rights Reserved.
- * Copyright (C) 2013 Google 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
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * 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 ContextLifecycleNotifier_h
-#define ContextLifecycleNotifier_h
-
-#include "core/dom/ActiveDOMObject.h"
-#include "wtf/HashSet.h"
-#include "wtf/PassOwnPtr.h"
-
-namespace WTF {
-class MemoryObjectInfo;
-}
-
-namespace WebCore {
-
-class ActiveDOMObject;
-class ContextDestructionObserver;
-class ScriptExecutionContext;
-
-class ContextLifecycleNotifier {
-public:
-    static PassOwnPtr<ContextLifecycleNotifier> create(ScriptExecutionContext*);
-
-    virtual ~ContextLifecycleNotifier();
-
-    typedef HashSet<ContextDestructionObserver*> ContextObserverSet;
-    typedef HashSet<ActiveDOMObject*> ActiveDOMObjectSet;
-
-    const ActiveDOMObjectSet& activeDOMObjects() const { return m_activeDOMObjects; }
-
-    virtual void addObserver(ContextDestructionObserver*, ContextDestructionObserver::Type as);
-    virtual void removeObserver(ContextDestructionObserver*, ContextDestructionObserver::Type as);
-
-    void notifyResumingActiveDOMObjects();
-    void notifySuspendingActiveDOMObjects(ActiveDOMObject::ReasonForSuspension);
-    void notifyStoppingActiveDOMObjects();
-
-    bool contains(ActiveDOMObject* object) const { return m_activeDOMObjects.contains(object); }
-    bool canSuspendActiveDOMObjects();
-    bool hasPendingActivity() const;
-
-    void reportMemoryUsage(WTF::MemoryObjectInfo*) const;
-
-protected:
-    explicit ContextLifecycleNotifier(ScriptExecutionContext*);
-
-    bool m_iterating;
-
-private:
-    ScriptExecutionContext* m_context;
-    ContextObserverSet m_destructionObservers;
-    ActiveDOMObjectSet m_activeDOMObjects;
-    bool m_inDestructor;
-};
-
-inline PassOwnPtr<ContextLifecycleNotifier> ContextLifecycleNotifier::create(ScriptExecutionContext* context)
-{
-    return adoptPtr(new ContextLifecycleNotifier(context));
-}
-
-} // namespace WebCore
-
-#endif // ContextLifecycleNotifier_h
-