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diff --git a/Source/WebCore/accessibility/AccessibilityAttachment.h b/Source/WebCore/accessibility/AccessibilityAttachment.h
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+++ b/Source/WebCore/accessibility/AccessibilityAttachment.h
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+/*
+ * Copyright (C) 2016 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER 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.
+ */
+
+#pragma once
+
+#if ENABLE(ATTACHMENT_ELEMENT)
+
+#include "AccessibilityRenderObject.h"
+
+namespace WebCore {
+    
+class HTMLAttachmentElement;
+class RenderAttachment;
+    
+class AccessibilityAttachment final : public AccessibilityRenderObject {
+public:
+    static Ref<AccessibilityAttachment> create(RenderAttachment*);
+    HTMLAttachmentElement* attachmentElement() const;
+    bool hasProgress(float* progress = nullptr) const;
+    
+private:
+    AccessibilityRole roleValue() const override { return ButtonRole; }
+    bool isAttachmentElement() const override { return true; }
+
+    String roleDescription() const override;
+    float valueForRange() const override;
+    bool computeAccessibilityIsIgnored() const override;
+    void accessibilityText(Vector<AccessibilityText>&) override;
+    explicit AccessibilityAttachment(RenderAttachment*);
+};
+    
+} // namespace WebCore
+
+SPECIALIZE_TYPE_TRAITS_ACCESSIBILITY(AccessibilityAttachment, isAttachmentElement())
+
+#endif // ENABLE(ATTACHMENT_ELEMENT)