[v8 gc] Introduce a base class for all objects that can have pending activity

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 16 matching lines @@
  * (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 Animation_h
 #define Animation_h
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseProperty.h"
+#include "bindings/core/v8/V8GCRoot.h"
 #include "core/CSSPropertyNames.h"
 #include "core/CoreExport.h"
 #include "core/animation/AnimationEffect.h"
 #include "core/dom/ContextLifecycleObserver.h"
 #include "core/dom/DOMException.h"
 #include "core/events/EventTarget.h"
 #include "platform/animation/CompositorAnimationDelegate.h"
 #include "platform/animation/CompositorAnimationPlayerClient.h"
 #include "platform/heap/Handle.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class AnimationTimeline;
 class CompositorAnimationPlayer;
 class Element;
 class ExceptionState;
 
 class CORE_EXPORT Animation final
     : public RefCountedGarbageCollectedEventTargetWithInlineData<Animation>
     , public ContextLifecycleObserver
     , public CompositorAnimationDelegate
-    , public CompositorAnimationPlayerClient {
+    , public CompositorAnimationPlayerClient
+    , public V8GCRoot {
     DEFINE_WRAPPERTYPEINFO();
     REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(Animation);
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(Animation);
 public:
     enum AnimationPlayState {
         Unset,
         Idle,
         Pending,
         Running,
         Paused,
@@ skipping 226 matching lines @@
 
     OwnPtr<CompositorAnimationPlayer> m_compositorPlayer;
 
     bool m_currentTimePending;
     bool m_stateIsBeingUpdated;
 };
 
 } // namespace blink
 
 #endif // Animation_h