--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/accessibility/AccessibilityScrollbar.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,64 @@
+/*
+ * 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.
+ * 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 AccessibilityScrollbar_h
+#define AccessibilityScrollbar_h
+
+#include "AccessibilityObject.h"
+
+namespace WebCore {
+
+class Scrollbar;
+
+class AccessibilityScrollbar : public AccessibilityObject {
+public:
+    static PassRefPtr<AccessibilityScrollbar> create();
+
+    void setScrollbar(Scrollbar* scrollbar) { m_scrollbar = scrollbar; }
+
+    virtual AccessibilityRole roleValue() const { return ScrollBarRole; }
+
+    virtual float valueForRange() const;
+
+private:
+    AccessibilityScrollbar();
+
+    virtual bool accessibilityIsIgnored() const { return false; }
+
+    // These should never be reached since the AccessibilityScrollbar is not part of
+    // the accessibility tree.
+    virtual IntSize size() const { ASSERT_NOT_REACHED(); return IntSize(); }
+    virtual IntRect elementRect() const { ASSERT_NOT_REACHED(); return IntRect(); }
+    virtual AccessibilityObject* parentObject() const { ASSERT_NOT_REACHED(); return 0; }
+
+    Scrollbar* m_scrollbar;
+};
+
+} // namespace WebCore
+
+#endif // AccessibilityScrollbar_h