Use wrapper tracing for worklets.

third_party/WebKit/Source/modules/compositorworker/AnimationWorkletGlobalScope.h

Index: third_party/WebKit/Source/modules/compositorworker/AnimationWorkletGlobalScope.h
diff --git a/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletGlobalScope.h b/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletGlobalScope.h
index e9fabbd5886d4468209fc928f17e43109e612810..c4c4eccd8658f3ef384a59e0788f340d653c5054 100644
--- a/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletGlobalScope.h
+++ b/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletGlobalScope.h
@@ -9,6 +9,7 @@
 #include "core/workers/ThreadedWorkletGlobalScope.h"
 #include "modules/compositorworker/Animator.h"
 #include "modules/compositorworker/AnimatorDefinition.h"
+#include "platform/bindings/ScriptWrappable.h"
 
 namespace blink {
 
@@ -25,8 +26,7 @@ class AnimationWorkletGlobalScope : public ThreadedWorkletGlobalScope {
                                              WorkerThread*);
   ~AnimationWorkletGlobalScope() override;
   DECLARE_TRACE();
-
-  void Dispose() final;
+  DECLARE_TRACE_WRAPPERS();
 
   void registerAnimator(const String& name,
                         const ScriptValue& ctorValue,
@@ -41,11 +41,12 @@ class AnimationWorkletGlobalScope : public ThreadedWorkletGlobalScope {
                               v8::Isolate*,
                               WorkerThread*);
 
-  typedef HeapHashMap<String, Member<AnimatorDefinition>> DefinitionMap;
-  DefinitionMap m_animatorDefinitions;
+  typedef HeapHashMap<String, TraceWrapperMember<AnimatorDefinition>>
+      DefinitionMap;
+  DefinitionMap animator_definitions_;
 
-  typedef HeapVector<Member<Animator>> AnimatorList;
-  AnimatorList m_animators;
+  typedef HeapVector<TraceWrapperMember<Animator>> AnimatorList;
+  AnimatorList animators_;
 };
 
 }  // namespace blink