AXObject is not copyable

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

 /*
  * Copyright (C) 2011 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
@@ skipping 17 matching lines @@
 
 #include "core/html/shadow/SpinButtonElement.h"
 #include "modules/accessibility/AXMockObject.h"
 
 
 namespace blink {
 
 class AXObjectCacheImpl;
 
 class AXSpinButton final : public AXMockObject {
+    WTF_MAKE_NONCOPYABLE(AXSpinButton);
+
 public:
     static AXSpinButton* create(AXObjectCacheImpl&);
     ~AXSpinButton() override;
     DECLARE_VIRTUAL_TRACE();
 
     void setSpinButtonElement(SpinButtonElement* spinButton) { m_spinButtonElement = spinButton; }
     void step(int amount);
 
 private:
     explicit AXSpinButton(AXObjectCacheImpl&);
@@ skipping 24 matching lines @@
     bool isSpinButtonPart() const override { return true; }
     LayoutRect elementRect() const override;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXSpinButton, isNativeSpinButton());
 DEFINE_AX_OBJECT_TYPE_CASTS(AXSpinButtonPart, isSpinButtonPart());
 
 } // namespace blink
 
 #endif // AXSpinButton_h