[wrapper-tracing] Trace CustomElementReactionStack

third_party/WebKit/Source/core/frame/LocalDOMWindow.h

Index: third_party/WebKit/Source/core/frame/LocalDOMWindow.h
diff --git a/third_party/WebKit/Source/core/frame/LocalDOMWindow.h b/third_party/WebKit/Source/core/frame/LocalDOMWindow.h
index 2d0a9d2e9eb265e04cf6db6f6dc4c3a2bc036a74..7903760b16572ee5ae6b6295fc41732a5fd2aee0 100644
--- a/third_party/WebKit/Source/core/frame/LocalDOMWindow.h
+++ b/third_party/WebKit/Source/core/frame/LocalDOMWindow.h
@@ -27,6 +27,7 @@
 #ifndef LocalDOMWindow_h
 #define LocalDOMWindow_h
 
+#include "bindings/core/v8/TraceWrapperMember.h"
 #include "core/CoreExport.h"
 #include "core/events/EventTarget.h"
 #include "core/frame/DOMWindow.h"
@@ -82,6 +83,7 @@ class CORE_EXPORT LocalDOMWindow final : public DOMWindow,
   ~LocalDOMWindow() override;
 
   DECLARE_VIRTUAL_TRACE();
+  DECLARE_VIRTUAL_TRACE_WRAPPERS();
 
   Document* installNewDocument(const String& mimeType,
                                const DocumentInit&,
@@ -277,7 +279,7 @@ class CORE_EXPORT LocalDOMWindow final : public DOMWindow,
   mutable Member<BarProp> m_toolbar;
   mutable Member<Navigator> m_navigator;
   mutable Member<StyleMedia> m_media;
-  mutable Member<CustomElementRegistry> m_customElements;
+  mutable TraceWrapperMember<CustomElementRegistry> m_customElements;
 
   String m_status;
   String m_defaultStatus;