diff -r 000000000000 -r 6474c204b198 ipc/glue/ScopedXREEmbed.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipc/glue/ScopedXREEmbed.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,33 @@
+/* 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 __IPC_GLUE_SCOPEDXREEMBED_H__
+#define __IPC_GLUE_SCOPEDXREEMBED_H__
+
+#include "nsString.h"
+#include "nsAutoPtr.h"
+#include "nsIFile.h"
+
+namespace mozilla {
+namespace ipc {
+
+class ScopedXREEmbed
+{
+public:
+  ScopedXREEmbed();
+  ~ScopedXREEmbed();
+
+  void Start();
+  void Stop();
+  void SetAppDir(const nsACString& aPath);
+
+private:
+  bool mShouldKillEmbedding;
+  nsCOMPtr<nsIFile> mAppDir;
+};
+
+} /* namespace ipc */
+} /* namespace mozilla */
+
+#endif /* __IPC_GLUE_SCOPEDXREEMBED_H__ */
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