Re-land: Initial skeleton of Accessibility Object Model Phase 1

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

 /*
  * Copyright (C) 2014, 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 58 matching lines @@
 
   void remove(LayoutObject*) override;
   void remove(Node*) override;
   void remove(AbstractInlineTextBox*) override;
 
   const Element* rootAXEditableElement(const Node*) override;
 
   // Called by a node when text or a text equivalent (e.g. alt) attribute is
   // changed.
   void textChanged(LayoutObject*) override;
+  void textChanged(AXObject*);
   // Called when a node has just been attached, so we can make sure we have the
   // right subclass of AXObject.
   void updateCacheAfterNodeIsAttached(Node*) override;
 
   void handleAttributeChanged(const QualifiedName& attrName, Element*) override;
   void handleFocusedUIElementChanged(Node* oldFocusedNode,
                                      Node* newFocusedNode) override;
   void handleInitialFocus() override;
   void handleTextFormControlChanged(Node*) override;
   void handleEditableTextContentChanged(Node*) override;
@@ skipping 92 matching lines @@
                       HeapVector<Member<AXObject>>& ownedChildren);
 
   // Given an element in the DOM tree that was either just added or whose id
   // just changed, check to see if another object wants to be its parent due to
   // aria-owns. If so, update the tree by calling childrenChanged() on the
   // potential owner, possibly reparenting this element.
   void updateTreeIfElementIdIsAriaOwned(Element*);
 
  protected:
   void postPlatformNotification(AXObject*, AXNotification);
-  void textChanged(AXObject*);
   void labelChanged(Element*);
 
   AXObject* createFromRenderer(LayoutObject*);
   AXObject* createFromNode(Node*);
   AXObject* createFromInlineTextBox(AbstractInlineTextBox*);
 
  private:
   Member<Document> m_document;
   HeapHashMap<AXID, Member<AXObject>> m_objects;
   // LayoutObject and AbstractInlineTextBox are not on the Oilpan heap so we
@@ skipping 56 matching lines @@
 // This is the only subclass of AXObjectCache.
 DEFINE_TYPE_CASTS(AXObjectCacheImpl, AXObjectCache, cache, true, true);
 
 bool nodeHasRole(Node*, const String& role);
 // This will let you know if aria-hidden was explicitly set to false.
 bool isNodeAriaVisible(Node*);
 
 }  // namespace blink
 
 #endif