AXObject is not copyable

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

 /*
  * Copyright (C) 2012 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 18 matching lines @@
 #ifndef AXSVGRoot_h
 #define AXSVGRoot_h
 
 #include "modules/accessibility/AXLayoutObject.h"
 
 namespace blink {
 
 class AXObjectCacheImpl;
 
 class AXSVGRoot final : public AXLayoutObject {
+    WTF_MAKE_NONCOPYABLE(AXSVGRoot);
 
 protected:
     AXSVGRoot(LayoutObject*, AXObjectCacheImpl&);
 
 public:
     static AXSVGRoot* create(LayoutObject*, AXObjectCacheImpl&);
     ~AXSVGRoot() override;
 
     void setParent(AXObject*) override;
 
     AccessibilityRole determineAccessibilityRole() override;
     bool computeAccessibilityIsIgnored(IgnoredReasons*) const override;
 
 private:
     AXObject* computeParent() const override;
     bool isAXSVGRoot() const override { return true; }
 };
 
 } // namespace blink
 
 #endif // AXSVGRoot_h