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diff --git a/accessible/generic/ARIAGridAccessible.h b/accessible/generic/ARIAGridAccessible.h
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+++ b/accessible/generic/ARIAGridAccessible.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef MOZILLA_A11Y_ARIAGridAccessible_h_
+#define MOZILLA_A11Y_ARIAGridAccessible_h_
+
+#include "HyperTextAccessible.h"
+
+namespace mozilla {
+namespace a11y {
+
+/**
+ * Accessible for ARIA gridcell and rowheader/columnheader.
+ */
+class ARIAGridCellAccessible : public HyperTextAccessible {
+ public:
+  ARIAGridCellAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  NS_INLINE_DECL_REFCOUNTING_INHERITED(ARIAGridCellAccessible,
+                                       HyperTextAccessible)
+
+  // LocalAccessible
+  virtual void ApplyARIAState(uint64_t* aState) const override;
+  virtual already_AddRefed<AccAttributes> NativeAttributes() override;
+
+ protected:
+  virtual ~ARIAGridCellAccessible() {}
+};
+
+}  // namespace a11y
+}  // namespace mozilla
+
+#endif