Revert of Initial skeleton of Accessibility Object Model Phase 1

third_party/WebKit/Source/core/dom/AccessibleNode.h

-// Copyright 2017 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef AccessibleNode_h
-#define AccessibleNode_h
-
-#include "bindings/core/v8/ScriptWrappable.h"
-#include "core/CoreExport.h"
-#include "wtf/HashMap.h"
-#include "wtf/text/AtomicString.h"
-#include "wtf/text/AtomicStringHash.h"
-
-namespace blink {
-
-class Element;
-
-// All of the properties of AccessibleNode that have type "string".
-// TODO(dmazzoni): Add similar enums for all of the properties with
-// type bool, float, reference, and reference list.
-enum class AOMStringProperty { kRole, kLabel };
-
-// Accessibility Object Model node
-// Explainer: https://github.com/WICG/aom/blob/master/explainer.md
-// Spec: https://wicg.github.io/aom/spec/
-class CORE_EXPORT AccessibleNode
-    : public GarbageCollectedFinalized<AccessibleNode>,
-      public ScriptWrappable {
-  DEFINE_WRAPPERTYPEINFO();
-
- public:
-  explicit AccessibleNode(Element*);
-  virtual ~AccessibleNode();
-
-  // Returns the given string property if the Element has an AccessibleNode,
-  // otherwise returns the equivalent ARIA attribute.
-  static const AtomicString& getProperty(Element*, AOMStringProperty);
-
-  AtomicString role() const;
-  void setRole(const AtomicString&);
-
-  AtomicString label() const;
-  void setLabel(const AtomicString&);
-
-  DECLARE_VIRTUAL_TRACE();
-
- private:
-  void setStringProperty(AOMStringProperty, const AtomicString&);
-
-  Vector<std::pair<AOMStringProperty, AtomicString>> m_stringProperties;
-
-  // This object's owner Element.
-  Member<Element> m_element;
-};
-
-}  // namespace blink
-
-#endif  // AccessibleNode_h