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+/* -*- Mode: IDL; 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/.
+ *
+ * The origin of this IDL file is
+ * https://w3c.github.io/performance-timeline/#the-performanceobserver-interface
+ */
+
+dictionary PerformanceObserverInit {
+ required sequence<DOMString> entryTypes;
+};
+
+callback PerformanceObserverCallback = void (PerformanceObserverEntryList entries, PerformanceObserver observer);
+
+[Func="Performance::IsObserverEnabled",
+ Constructor(PerformanceObserverCallback callback),
+ Exposed=(Window,Worker)]
+interface PerformanceObserver {
+ [Throws]
+ void observe(PerformanceObserverInit options);
+ void disconnect();
+};