Implement computedRole and computedName (behind a flag)

Source/modules/accessibility/AXNodeObject.h

 /*
  * Copyright (C) 2012, Google 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 16 matching lines @@
  */
 
 #ifndef AXNodeObject_h
 #define AXNodeObject_h
 
 #include "modules/accessibility/AXObject.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
+class AXObjectCache;
 class Element;
 class HTMLLabelElement;
 class LayoutRect;
 class Node;
 
 class AXNodeObject : public AXObject {
 protected:
-    explicit AXNodeObject(Node*);
+    AXNodeObject(Node*, AXObjectCache*);
 
 public:
-    static PassRefPtr<AXNodeObject> create(Node*);
+    static PassRefPtr<AXNodeObject> create(Node*, AXObjectCache*);
     virtual ~AXNodeObject();
 
 protected:
     // Protected data.
     AccessibilityRole m_ariaRole;
     bool m_childrenDirty;
 #if ENABLE(ASSERT)
     bool m_initialized;
 #endif
 
@@ skipping 139 matching lines @@
     void changeValueByPercent(float percentChange);
     float stepValueForRange() const;
     AXObject* findChildWithTagName(const HTMLQualifiedName&) const;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXNodeObject, isAXNodeObject());
 
 } // namespace blink
 
 #endif // AXNodeObject_h