diff -r 000000000000 -r 6474c204b198 content/media/webaudio/OfflineAudioCompletionEvent.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/media/webaudio/OfflineAudioCompletionEvent.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,50 @@
+/* -*- 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 OfflineAudioCompletionEvent_h_
+#define OfflineAudioCompletionEvent_h_
+
+#include "AudioBuffer.h"
+#include "mozilla/dom/Event.h"
+
+namespace mozilla {
+namespace dom {
+
+class AudioContext;
+
+class OfflineAudioCompletionEvent : public Event
+{
+public:
+  OfflineAudioCompletionEvent(AudioContext* aOwner,
+                              nsPresContext* aPresContext,
+                              WidgetEvent* aEvent);
+
+  NS_DECL_ISUPPORTS_INHERITED
+  NS_FORWARD_TO_EVENT
+  NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(OfflineAudioCompletionEvent, Event)
+
+  virtual JSObject* WrapObject(JSContext* aCx) MOZ_OVERRIDE;
+
+  void InitEvent(AudioBuffer* aRenderedBuffer)
+  {
+    InitEvent(NS_LITERAL_STRING("complete"), false, false);
+    mRenderedBuffer = aRenderedBuffer;
+  }
+
+  AudioBuffer* RenderedBuffer() const
+  {
+    return mRenderedBuffer;
+  }
+
+private:
+  nsRefPtr<AudioBuffer> mRenderedBuffer;
+};
+
+}
+}
+
+#endif
+