Implement computedRole and computedName (behind a flag)

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 12 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef AXMenuListOption_h
 #define AXMenuListOption_h
 
 #include "modules/accessibility/AXMockObject.h"
 
 namespace blink {
 
+class AXObjectCache;
 class HTMLElement;
 
 class AXMenuListOption final : public AXMockObject {
 public:
-    static PassRefPtr<AXMenuListOption> create() { return adoptRef(new AXMenuListOption); }
+    static PassRefPtr<AXMenuListOption> create(AXObjectCache* axObjectCache) { return adoptRef(new AXMenuListOption(axObjectCache)); }
 
     void setElement(HTMLElement*);
 
 private:
-    AXMenuListOption();
+    explicit AXMenuListOption(AXObjectCache*);
 
     virtual bool isMenuListOption() const override { return true; }
 
     virtual AccessibilityRole roleValue() const override { return MenuListOptionRole; }
     virtual bool canHaveChildren() const override { return false; }
 
     virtual Element* actionElement() const override;
     virtual bool isEnabled() const override;
     virtual bool isVisible() const override;
     virtual bool isOffScreen() const override;
     virtual bool isSelected() const override;
     virtual void setSelected(bool) override;
     virtual bool canSetSelectedAttribute() const override;
     virtual LayoutRect elementRect() const override;
     virtual String stringValue() const override;
     virtual bool computeAccessibilityIsIgnored() const override;
 
     RefPtrWillBePersistent<HTMLElement> m_element;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXMenuListOption, isMenuListOption());
 
 } // namespace blink
 
 #endif // AXMenuListOption_h