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

Source/core/accessibility/AXSpinButton.h

Index: Source/core/accessibility/AXSpinButton.h
diff --git a/Source/core/accessibility/AXSpinButton.h b/Source/core/accessibility/AXSpinButton.h
deleted file mode 100644
index d1c183a53883e58cd5145ec7bdea0b256db7360f..0000000000000000000000000000000000000000
--- a/Source/core/accessibility/AXSpinButton.h
+++ /dev/null
@@ -1,78 +0,0 @@
-/*
- * Copyright (C) 2011 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 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 AXSpinButton_h
-#define AXSpinButton_h
-
-#include "core/accessibility/AXMockObject.h"
-
-#include "core/html/shadow/SpinButtonElement.h"
-
-namespace blink {
-
-class AXSpinButton final : public AXMockObject {
-public:
-    static PassRefPtr<AXSpinButton> create();
-    virtual ~AXSpinButton();
-
-    void setSpinButtonElement(SpinButtonElement* spinButton) { m_spinButtonElement = spinButton; }
-    void step(int amount);
-
-private:
-    AXSpinButton();
-
-    virtual AccessibilityRole roleValue() const override { return SpinButtonRole; }
-    virtual bool isSpinButton() const override { return true; }
-    virtual bool isNativeSpinButton() const override { return true; }
-    virtual void addChildren() override;
-    virtual LayoutRect elementRect() const override;
-
-    SpinButtonElement* m_spinButtonElement;
-};
-
-class AXSpinButtonPart final : public AXMockObject {
-public:
-    static PassRefPtr<AXSpinButtonPart> create();
-    virtual ~AXSpinButtonPart() { }
-
-    bool isIncrementor() const { return m_isIncrementor; }
-    void setIsIncrementor(bool value) { m_isIncrementor = value; }
-
-private:
-    AXSpinButtonPart();
-    bool m_isIncrementor : 1;
-
-    virtual bool press() const override;
-    virtual AccessibilityRole roleValue() const override { return ButtonRole; }
-    virtual bool isSpinButtonPart() const override { return true; }
-    virtual LayoutRect elementRect() const override;
-};
-
-DEFINE_AX_OBJECT_TYPE_CASTS(AXSpinButton, isNativeSpinButton());
-DEFINE_AX_OBJECT_TYPE_CASTS(AXSpinButtonPart, isSpinButtonPart());
-
-} // namespace blink
-
-#endif // AXSpinButton_h