import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

gfx/layers/ipc/PCompositable.ipdl

@@ -0,0 +1,28 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* 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/. */
+
+include protocol PLayerTransaction;
+include protocol PImageBridge;
+include protocol PCompositorBridge;
+
+namespace mozilla {
+namespace layers {
+
+async protocol PCompositable
+{
+    manager PImageBridge or PLayerTransaction;
+child:
+    async __delete__();
+parent:
+    /**
+     * Asynchronously tell the compositor side to remove the texture.
+     */
+    async Destroy();
+};
+
+} // namespace
+} // namespace