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+/* -*- 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 mozilla_contentblockinguserinteraction_h
+#define mozilla_contentblockinguserinteraction_h
+
+#define USER_INTERACTION_PERM "storageAccessAPI"_ns
+
+class nsIPrincipal;
+
+namespace mozilla {
+
+class ContentBlockingUserInteraction final {
+ public:
+ // Used to remember that we observed a user interaction that is significant
+ // for content blocking.
+ static void Observe(nsIPrincipal* aPrincipal);
+
+ // Used to query whether we've observed a user interaction that is significant
+ // for content blocking for the given principal in the past.
+ static bool Exists(nsIPrincipal* aPrincipal);
+};
+
+} // namespace mozilla
+
+#endif // mozilla_contentblockinguserinteraction_h