Use wrapper tracing for worklets.

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef AnimationWorkletGlobalScope_h
 #define AnimationWorkletGlobalScope_h
 
 #include "bindings/core/v8/ScriptValue.h"
 #include "core/workers/ThreadedWorkletGlobalScope.h"
 #include "modules/compositorworker/Animator.h"
 #include "modules/compositorworker/AnimatorDefinition.h"
+#include "platform/bindings/ScriptWrappable.h"
 
 namespace blink {
 
 class ExceptionState;
 
 class AnimationWorkletGlobalScope : public ThreadedWorkletGlobalScope {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static AnimationWorkletGlobalScope* Create(const KURL&,
                                              const String& user_agent,
                                              PassRefPtr<SecurityOrigin>,
                                              v8::Isolate*,
                                              WorkerThread*);
   ~AnimationWorkletGlobalScope() override;
   DECLARE_TRACE();
+  DECLARE_TRACE_WRAPPERS();
 
   void Dispose() final;
 
   void registerAnimator(const String& name,
                         const ScriptValue& ctorValue,
                         ExceptionState&);
 
   Animator* CreateInstance(const String& name);
 
  private:
   AnimationWorkletGlobalScope(const KURL&,
                               const String& user_agent,
                               PassRefPtr<SecurityOrigin>,
                               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
 
 #endif  // AnimationWorkletGlobalScope_h