import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/media/eme/MediaKeyError.h

@@ -0,0 +1,38 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 sts=2 et cindent: */
+/* 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_dom_MediaKeyError_h
+#define mozilla_dom_MediaKeyError_h
+
+#include "mozilla/Attributes.h"
+#include "mozilla/ErrorResult.h"
+#include "nsWrapperCache.h"
+#include "mozilla/dom/Event.h"
+#include "js/TypeDecls.h"
+
+namespace mozilla {
+namespace dom {
+
+class MediaKeyError final : public Event
+{
+public:
+  NS_FORWARD_TO_EVENT
+
+  MediaKeyError(EventTarget* aOwner, uint32_t aSystemCode);
+  ~MediaKeyError();
+
+  JSObject* WrapObjectInternal(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
+
+  uint32_t SystemCode() const;
+
+private:
+  uint32_t mSystemCode;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif