Create Source/modules/accessibility/ and move most of core/accessibility/* into it

Source/core/accessibility/AXObjectCacheImpl.h

Index: Source/core/accessibility/AXObjectCacheImpl.h
diff --git a/Source/core/accessibility/AXObjectCacheImpl.h b/Source/core/accessibility/AXObjectCacheImpl.h
deleted file mode 100644
index 851479c14e94a358f2682b4b7e0c460de9a0649b..0000000000000000000000000000000000000000
--- a/Source/core/accessibility/AXObjectCacheImpl.h
+++ /dev/null
@@ -1,206 +0,0 @@
-/*
- * 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
- *     notice, this list of conditions and the following disclaimer in the
- *     documentation and/or other materials provided with the distribution.
- * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
- *     its contributors may be used to endorse or promote products derived
- *     from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
- * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef AXObjectCacheImpl_h
-#define AXObjectCacheImpl_h
-
-#include "core/accessibility/AXObject.h"
-#include "core/accessibility/AXObjectCache.h"
-#include "core/rendering/RenderText.h"
-#include "platform/Timer.h"
-#include "wtf/Forward.h"
-#include "wtf/HashMap.h"
-#include "wtf/HashSet.h"
-#include "wtf/RefPtr.h"
-
-namespace blink {
-
-class AbstractInlineTextBox;
-class HTMLAreaElement;
-class FrameView;
-class Widget;
-
-struct TextMarkerData {
-    AXID axID;
-    Node* node;
-    int offset;
-    EAffinity affinity;
-};
-
-// This class should only be used from inside the accessibility directory.
-class AXObjectCacheImpl : public AXObjectCache {
-    WTF_MAKE_NONCOPYABLE(AXObjectCacheImpl); WTF_MAKE_FAST_ALLOCATED;
-public:
-    explicit AXObjectCacheImpl(Document&);
-    ~AXObjectCacheImpl();
-
-    static AXObject* focusedUIElementForPage(const Page*);
-
-    virtual AXObject* objectFromAXID(AXID id) const override { return m_objects.get(id); }
-
-    virtual AXObject* root() override;
-    virtual AXObject* getOrCreateAXObjectFromRenderView(RenderView*) override;
-
-    virtual void selectionChanged(Node*) override;
-    virtual void childrenChanged(Node*) override;
-    virtual void childrenChanged(RenderObject*) override;
-    virtual void childrenChanged(Widget*) override;
-    virtual void checkedStateChanged(Node*) override;
-    virtual void selectedChildrenChanged(Node*) override;
-
-    // will only return the AXObject if it already exists
-    virtual AXObject* get(Node*);
-
-    virtual void remove(RenderObject*) override;
-    virtual void remove(Node*) override;
-    virtual void remove(Widget*) override;
-    virtual void remove(AbstractInlineTextBox*) override;
-
-    virtual const Element* rootAXEditableElement(const Node*) override;
-    virtual bool nodeIsTextControl(const Node*) override;
-
-    // Called by a node when text or a text equivalent (e.g. alt) attribute is changed.
-    virtual void textChanged(Node*) override;
-    virtual void textChanged(RenderObject*) override;
-    // Called when a node has just been attached, so we can make sure we have the right subclass of AXObject.
-    virtual void updateCacheAfterNodeIsAttached(Node*) override;
-
-    virtual void handleAttributeChanged(const QualifiedName& attrName, Element*) override;
-    virtual void handleFocusedUIElementChanged(Node* oldFocusedNode, Node* newFocusedNode) override;
-    virtual void handleInitialFocus() override;
-    virtual void handleTextFormControlChanged(Node*) override;
-    virtual void handleEditableTextContentChanged(Node*) override;
-    virtual void handleValueChanged(Node*) override;
-    virtual void handleUpdateActiveMenuOption(RenderMenuList*, int optionIndex) override;
-    virtual void handleLoadComplete(Document*) override;
-    virtual void handleLayoutComplete(Document*) override;
-
-    virtual void setCanvasObjectBounds(Element*, const LayoutRect&) override;
-
-    virtual void clearWeakMembers(Visitor*) override;
-
-    virtual void inlineTextBoxesUpdated(RenderObject* renderer) override;
-
-    // Called when the scroll offset changes.
-    virtual void handleScrollPositionChanged(FrameView*) override;
-    virtual void handleScrollPositionChanged(RenderObject*) override;
-
-    // Called when scroll bars are added / removed (as the view resizes).
-    void handleScrollbarUpdate(FrameView*) override;
-    void handleLayoutComplete(RenderObject*) override;
-    void handleScrolledToAnchor(const Node* anchorNode) override;
-
-    // Returns the root object for the entire document.
-    AXObject* rootObject();
-
-    // used for objects without backing elements
-    AXObject* getOrCreate(AccessibilityRole);
-    AXObject* getOrCreate(RenderObject*);
-    AXObject* getOrCreate(Widget*);
-    AXObject* getOrCreate(Node*);
-    AXObject* getOrCreate(AbstractInlineTextBox*);
-
-    // will only return the AXObject if it already exists
-    AXObject* get(RenderObject*);
-    AXObject* get(Widget*);
-    AXObject* get(AbstractInlineTextBox*);
-
-    void remove(AXID);
-
-    void detachWrapper(AXObject*);
-    void attachWrapper(AXObject*);
-    void childrenChanged(AXObject*);
-    void selectedChildrenChanged(RenderObject*);
-
-    void handleActiveDescendantChanged(Node*);
-    void handleAriaRoleChanged(Node*);
-    void handleAriaExpandedChange(Node*);
-
-    void recomputeIsIgnored(RenderObject* renderer);
-
-    bool accessibilityEnabled();
-    bool inlineTextBoxAccessibilityEnabled();
-
-    void removeAXID(AXObject*);
-    bool isIDinUse(AXID id) const { return m_idsInUse.contains(id); }
-
-    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; }
-
-    void postNotification(RenderObject*, AXNotification, bool postToElement);
-    void postNotification(Node*, AXNotification, bool postToElement);
-    void postNotification(AXObject*, Document*, AXNotification, bool postToElement);
-
-protected:
-    void postPlatformNotification(AXObject*, AXNotification);
-    void textChanged(AXObject*);
-    void labelChanged(Element*);
-
-    // This is a weak reference cache for knowing if Nodes used by TextMarkers are valid.
-    void setNodeInUse(Node* n) { m_textMarkerNodes.add(n); }
-    void removeNodeForUse(Node* n) { m_textMarkerNodes.remove(n); }
-    bool isNodeInUse(Node* n) { return m_textMarkerNodes.contains(n); }
-
-private:
-    Document& m_document;
-    HashMap<AXID, RefPtr<AXObject> > m_objects;
-    HashMap<RenderObject*, AXID> m_renderObjectMapping;
-    HashMap<Widget*, AXID> m_widgetObjectMapping;
-    HashMap<Node*, AXID> m_nodeObjectMapping;
-    HashMap<AbstractInlineTextBox*, AXID> m_inlineTextBoxObjectMapping;
-    HashSet<Node*> m_textMarkerNodes;
-    int m_modificationCount;
-
-    HashSet<AXID> m_idsInUse;
-
-    Timer<AXObjectCacheImpl> m_notificationPostTimer;
-    Vector<pair<RefPtr<AXObject>, AXNotification> > m_notificationsToPost;
-    void notificationPostTimerFired(Timer<AXObjectCacheImpl>*);
-
-    static AXObject* focusedImageMapUIElement(HTMLAreaElement*);
-
-    AXID getAXID(AXObject*);
-
-    Settings* settings();
-};
-
-// 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*);
-
-}
-
-#endif