1 files changed, 24 insertions, 0 deletions
diff --git a/dom/media/gmp/GMPCallbackBase.h b/dom/media/gmp/GMPCallbackBase.h
new file mode 100644
index 0000000000..7284f18e86
--- /dev/null
+++ b/dom/media/gmp/GMPCallbackBase.h
@@ -0,0 +1,24 @@
+/* -*- Mode: C++; 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/. */
+
+#ifndef GMPCallbackBase_h_
+#define GMPCallbackBase_h_
+
+#include "nsISupportsImpl.h"
+
+class GMPCallbackBase {
+ public:
+  NS_INLINE_DECL_PURE_VIRTUAL_REFCOUNTING
+
+  virtual ~GMPCallbackBase() = default;
+
+  // The GMP code will call this if the codec crashes or shuts down.  It's
+  // expected that the consumer (destination of this callback) will respond
+  // by dropping their reference to the proxy, allowing the proxy/parent to
+  // be destroyed.
+  virtual void Terminated() = 0;
+};
+
+#endif