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

Source/core/accessibility/AXMenuList.h

Index: Source/core/accessibility/AXMenuList.h
diff --git a/Source/core/accessibility/AXMenuList.h b/Source/core/accessibility/AXMenuList.h
deleted file mode 100644
index 077579e5117a9b2fe674c65231b62a124533d193..0000000000000000000000000000000000000000
--- a/Source/core/accessibility/AXMenuList.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2010 Apple 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.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
- * 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 AXMenuList_h
-#define AXMenuList_h
-
-#include "core/accessibility/AXRenderObject.h"
-
-namespace blink {
-
-class RenderMenuList;
-
-class AXMenuList final : public AXRenderObject {
-public:
-    static PassRefPtr<AXMenuList> create(RenderMenuList* renderer);
-
-    virtual bool isCollapsed() const override;
-    virtual AccessibilityExpanded isExpanded() const override final;
-    virtual bool press() const override;
-
-    void didUpdateActiveOption(int optionIndex);
-
-private:
-    explicit AXMenuList(RenderMenuList*);
-
-    virtual bool isMenuList() const override { return true; }
-    virtual AccessibilityRole roleValue() const override { return PopUpButtonRole; }
-    virtual bool canSetFocusAttribute() const override;
-
-    virtual void addChildren() override;
-    virtual void childrenChanged() override;
-};
-
-DEFINE_AX_OBJECT_TYPE_CASTS(AXMenuList, isMenuList());
-
-} // namespace blink
-
-#endif // AXMenuList_h