1 files changed, 29 insertions, 0 deletions
diff --git a/xpcom/ds/nsProperties.h b/xpcom/ds/nsProperties.h
new file mode 100644
index 0000000000..c45c7361ea
--- /dev/null
+++ b/xpcom/ds/nsProperties.h
@@ -0,0 +1,29 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=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 nsProperties_h___
+#define nsProperties_h___
+
+#include "nsIProperties.h"
+#include "nsInterfaceHashtable.h"
+#include "nsHashKeys.h"
+#include "mozilla/Attributes.h"
+
+typedef nsInterfaceHashtable<nsCharPtrHashKey, nsISupports>
+    nsProperties_HashBase;
+
+class nsProperties final : public nsIProperties, public nsProperties_HashBase {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIPROPERTIES
+
+  nsProperties() = default;
+
+ private:
+  ~nsProperties() = default;
+};
+
+#endif /* nsProperties_h___ */