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

Source/core/accessibility/AXTableCell.h

Index: Source/core/accessibility/AXTableCell.h
diff --git a/Source/core/accessibility/AXTableCell.h b/Source/core/accessibility/AXTableCell.h
deleted file mode 100644
index f229114e720beba50fad20b0384fdac6ab31f3f5..0000000000000000000000000000000000000000
--- a/Source/core/accessibility/AXTableCell.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Copyright (C) 2008 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.
- * 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 AXTableCell_h
-#define AXTableCell_h
-
-#include "core/accessibility/AXRenderObject.h"
-
-namespace blink {
-
-class AXTableCell : public AXRenderObject {
-
-protected:
-    explicit AXTableCell(RenderObject*);
-public:
-    static PassRefPtr<AXTableCell> create(RenderObject*);
-    virtual ~AXTableCell();
-
-    virtual bool isTableCell() const override final;
-
-    // fills in the start location and row span of cell
-    virtual void rowIndexRange(pair<unsigned, unsigned>& rowRange);
-    // fills in the start location and column span of cell
-    virtual void columnIndexRange(pair<unsigned, unsigned>& columnRange);
-
-protected:
-    virtual AXObject* parentTable() const;
-    int m_rowIndex;
-    virtual AccessibilityRole determineAccessibilityRole() override final;
-
-private:
-    // If a table cell is not exposed as a table cell, a TH element can serve as its title UI element.
-    virtual AXObject* titleUIElement() const override final;
-    virtual bool exposesTitleUIElement() const override final { return true; }
-    virtual bool computeAccessibilityIsIgnored() const override final;
-};
-
-DEFINE_AX_OBJECT_TYPE_CASTS(AXTableCell, isTableCell());
-
-} // namespace blink
-
-#endif // AXTableCell_h