AXObject is not copyable

third_party/WebKit/Source/modules/accessibility/AXMenuListOption.h

 /*
  * Copyright (C) 2010 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 16 matching lines @@
 #define AXMenuListOption_h
 
 #include "core/html/HTMLOptionElement.h"
 #include "modules/accessibility/AXMockObject.h"
 
 namespace blink {
 
 class AXObjectCacheImpl;
 
 class AXMenuListOption final : public AXMockObject {
+    WTF_MAKE_NONCOPYABLE(AXMenuListOption);
+
 public:
     static AXMenuListOption* create(HTMLOptionElement* element, AXObjectCacheImpl& axObjectCache) { return new AXMenuListOption(element, axObjectCache); }
     ~AXMenuListOption() override;
 
 private:
     AXMenuListOption(HTMLOptionElement*, AXObjectCacheImpl&);
     DECLARE_VIRTUAL_TRACE();
 
     bool isMenuListOption() const override { return true; }
 
@@ skipping 15 matching lines @@
     bool computeAccessibilityIsIgnored(IgnoredReasons* = nullptr) const override;
 
     Member<HTMLOptionElement> m_element;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXMenuListOption, isMenuListOption());
 
 } // namespace blink
 
 #endif // AXMenuListOption_h