import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/webidl/PresentationConnectionList.webidl

@@ -0,0 +1,25 @@
+/* -*- 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/presentation-api/#interface-presentationconnectionlist
+ */
+
+[Pref="dom.presentation.receiver.enabled"]
+interface PresentationConnectionList : EventTarget {
+  /*
+   * Return the non-terminated set of presentation connections in the
+   * set of presentation controllers.
+   * TODO: Use FrozenArray once available. (Bug 1236777)
+   * readonly attribute FrozenArray<PresentationConnection> connections;
+   */
+  [Frozen, Cached, Pure]
+  readonly attribute sequence<PresentationConnection> connections;
+
+  /*
+   * It is called when an incoming connection is connected.
+   */
+  attribute EventHandler onconnectionavailable;
+};