Implement computedRole and computedName (behind a flag)

Source/modules/accessibility/AXObjectCacheImpl.h

Index: Source/modules/accessibility/AXObjectCacheImpl.h
diff --git a/Source/modules/accessibility/AXObjectCacheImpl.h b/Source/modules/accessibility/AXObjectCacheImpl.h
index b7d55febad05a2efb6f6a33a25607184558a9fb0..57c6bf56362363a9c8424ca45209760842b287d5 100644
--- a/Source/modules/accessibility/AXObjectCacheImpl.h
+++ b/Source/modules/accessibility/AXObjectCacheImpl.h
@@ -103,6 +103,8 @@ public:
     void handleLayoutComplete(RenderObject*) override;
     void handleScrolledToAnchor(const Node* anchorNode) override;
 
+    virtual PublicAXObject* publicAXObjectForNode(Node*) override;
+
     // Returns the root object for the entire document.
     AXObject* rootObject();
 
@@ -142,8 +144,6 @@ public:
 
     AXID platformGenerateAXID() const;
 
-    bool nodeHasRole(Node*, const AtomicString& role);
-
     // Counts the number of times the document has been modified. Some attribute values are cached
     // as long as the modification count hasn't changed.
     int modificationCount() const { return m_modificationCount; }
@@ -162,6 +162,10 @@ protected:
     void removeNodeForUse(Node* n) { m_textMarkerNodes.remove(n); }
     bool isNodeInUse(Node* n) { return m_textMarkerNodes.contains(n); }
 
+    PassRefPtr<AXObject> createFromRenderer(RenderObject*);
+    PassRefPtr<AXObject> createFromNode(Node*);
+    PassRefPtr<AXObject> createFromInlineTextBox(AbstractInlineTextBox*);
+
 private:
     Document& m_document;
     HashMap<AXID, RefPtr<AXObject> > m_objects;
@@ -191,10 +195,21 @@ private:
 // This is the only subclass of AXObjectCache.
 DEFINE_TYPE_CASTS(AXObjectCacheImpl, AXObjectCache, cache, true, true);
 
+class PublicAXObjectImpl : public PublicAXObject {
+public:
+    explicit PublicAXObjectImpl(AXObject*);
+    ~PublicAXObjectImpl();
+
+    virtual const AtomicString& computedRole();
+    virtual const String computedText();
+
+private:
+    RefPtr<AXObject> m_object;
+};
+
 bool nodeHasRole(Node*, const String& role);
 // This will let you know if aria-hidden was explicitly set to false.
 bool isNodeAriaVisible(Node*);
-
 }
 
 #endif