1 files changed, 29 insertions, 0 deletions
diff --git a/toolkit/components/glean/xpcom/FOG.h b/toolkit/components/glean/xpcom/FOG.h
new file mode 100644
index 0000000000..55e155052e
--- /dev/null
+++ b/toolkit/components/glean/xpcom/FOG.h
@@ -0,0 +1,29 @@
+/* -*- Mode: C++; tab-width: 8; 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 https://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_FOG_h
+#define mozilla_FOG_h
+
+#include "nsIFOG.h"
+#include "nsIObserver.h"
+
+namespace mozilla {
+class FOG final : public nsIFOG, public nsIObserver {
+  NS_DECL_THREADSAFE_ISUPPORTS
+  NS_DECL_NSIFOG
+  NS_DECL_NSIOBSERVER
+
+ public:
+  FOG() = default;
+  static already_AddRefed<FOG> GetSingleton();
+
+ private:
+  ~FOG() = default;
+  void Shutdown();
+};
+
+};  // namespace mozilla
+
+#endif  // mozilla_FOG_h