Reduce ActiveDOMObjects from core/

third_party/WebKit/Source/core/animation/Animation.h

 /*
  * 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 19 matching lines @@
 
 #ifndef Animation_h
 #define Animation_h
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseProperty.h"
 #include "core/CSSPropertyNames.h"
 #include "core/CoreExport.h"
 #include "core/animation/AnimationEffect.h"
-#include "core/dom/ActiveDOMObject.h"
+#include "core/dom/ContextLifecycleObserver.h"
 #include "core/dom/DOMException.h"
 #include "core/events/EventTarget.h"
 #include "platform/animation/CompositorAnimationPlayerClient.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/WebCompositorAnimationDelegate.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class AnimationTimeline;
 class CompositorAnimationPlayer;
 class Element;
 class ExceptionState;
 
 class CORE_EXPORT Animation final
     : public RefCountedGarbageCollectedEventTargetWithInlineData<Animation>
-    , public ActiveDOMObject
+    , public ContextLifecycleObserver
     , public WebCompositorAnimationDelegate
     , public CompositorAnimationPlayerClient {
     DEFINE_WRAPPERTYPEINFO();
     REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(Animation);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Animation);
 public:
     enum AnimationPlayState {
         Unset,
         Idle,
         Pending,
@@ skipping 41 matching lines @@
     bool playing() const { return !(playStateInternal() == Idle || limited() || m_paused || m_isPausedForTesting); }
     bool limited() const { return limited(currentTimeInternal()); }
     bool finishedInternal() const { return m_finished; }
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(finish);
     DEFINE_ATTRIBUTE_EVENT_LISTENER(cancel);
 
     const AtomicString& interfaceName() const override;
     ExecutionContext* executionContext() const override;
     bool hasPendingActivity() const override;
-    void stop() override;
+    void contextDestroyed() override;
 
     double playbackRate() const;
     void setPlaybackRate(double);
     const AnimationTimeline* timeline() const { return m_timeline; }
     AnimationTimeline* timeline() { return m_timeline; }
 
     double calculateStartTime(double currentTime) const;
     bool hasStartTime() const { return !isNull(m_startTime); }
     double startTime(bool& isNull) const;
     double startTime() const;
@@ skipping 166 matching lines @@
 
     OwnPtr<CompositorAnimationPlayer> m_compositorPlayer;
 
     bool m_currentTimePending;
     bool m_stateIsBeingUpdated;
 };
 
 } // namespace blink
 
 #endif // Animation_h