AXObject is not copyable

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

 /*
  * Copyright (C) 2008 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 28 matching lines @@
 class AXObjectCacheImpl;
 class AXSVGRoot;
 class Element;
 class FrameView;
 class HTMLAreaElement;
 class IntPoint;
 class Node;
 class Widget;
 
 class MODULES_EXPORT AXLayoutObject : public AXNodeObject {
+    WTF_MAKE_NONCOPYABLE(AXLayoutObject);
+
 protected:
     AXLayoutObject(LayoutObject*, AXObjectCacheImpl&);
 
 public:
     static AXLayoutObject* create(LayoutObject*, AXObjectCacheImpl&);
     ~AXLayoutObject() override;
 
     // Public, overridden from AXObject.
     LayoutObject* getLayoutObject() const final { return m_layoutObject; }
     LayoutRect elementRect() const override;
@@ skipping 156 matching lines @@
     AXRange textControlSelection() const;
     int indexForVisiblePosition(const VisiblePosition&) const;
     AXLayoutObject* getUnignoredObjectFromNode(Node&) const;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXLayoutObject, isAXLayoutObject());
 
 } // namespace blink
 
 #endif // AXLayoutObject_h