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diff --git a/accessible/html/HTMLListAccessible.h b/accessible/html/HTMLListAccessible.h
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+++ b/accessible/html/HTMLListAccessible.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* 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_HTMLListAccessible_h__
+#define mozilla_a11y_HTMLListAccessible_h__
+
+#include "BaseAccessibles.h"
+#include "HyperTextAccessibleWrap.h"
+
+namespace mozilla {
+namespace a11y {
+
+class HTMLListBulletAccessible;
+
+/**
+ * Used for HTML list (like HTML ul).
+ */
+class HTMLListAccessible : public HyperTextAccessibleWrap
+{
+public:
+  HTMLListAccessible(nsIContent* aContent, DocAccessible* aDoc) :
+    HyperTextAccessibleWrap(aContent, aDoc) { mGenericTypes |= eList; }
+
+  // nsISupports
+  NS_DECL_ISUPPORTS_INHERITED
+
+  // Accessible
+  virtual a11y::role NativeRole() override;
+  virtual uint64_t NativeState() override;
+
+protected:
+  virtual ~HTMLListAccessible() { }
+};
+
+
+/**
+ * Used for HTML list item (e.g. HTML li).
+ */
+class HTMLLIAccessible : public HyperTextAccessibleWrap
+{
+public:
+  HTMLLIAccessible(nsIContent* aContent, DocAccessible* aDoc);
+
+  // nsISupports
+  NS_DECL_ISUPPORTS_INHERITED
+
+  // Accessible
+  virtual void Shutdown() override;
+  virtual nsIntRect Bounds() const override;
+  virtual a11y::role NativeRole() override;
+  virtual uint64_t NativeState() override;
+
+  virtual bool InsertChildAt(uint32_t aIndex, Accessible* aChild) override;
+
+  // HTMLLIAccessible
+  HTMLListBulletAccessible* Bullet() const { return mBullet; }
+  void UpdateBullet(bool aHasBullet);
+
+protected:
+  virtual ~HTMLLIAccessible() { }
+
+private:
+  RefPtr<HTMLListBulletAccessible> mBullet;
+};
+
+
+/**
+ * Used for bullet of HTML list item element (for example, HTML li).
+ */
+class HTMLListBulletAccessible : public LeafAccessible
+{
+public:
+  HTMLListBulletAccessible(nsIContent* aContent, DocAccessible* aDoc);
+  virtual ~HTMLListBulletAccessible() { }
+
+  // Accessible
+  virtual nsIFrame* GetFrame() const override;
+  virtual ENameValueFlag Name(nsString& aName) override;
+  virtual a11y::role NativeRole() override;
+  virtual uint64_t NativeState() override;
+  virtual void AppendTextTo(nsAString& aText, uint32_t aStartOffset = 0,
+                            uint32_t aLength = UINT32_MAX) override;
+
+  // HTMLListBulletAccessible
+
+  /**
+   * Return true if the bullet is inside of list item element boundaries.
+   */
+  bool IsInside() const;
+};
+
+
+inline HTMLLIAccessible*
+Accessible::AsHTMLListItem()
+{
+  return IsHTMLListItem() ? static_cast<HTMLLIAccessible*>(this) : nullptr;
+}
+
+} // namespace a11y
+} // namespace mozilla
+
+#endif