1 files changed, 21 insertions, 0 deletions
diff --git a/gfx/layers/LayerSorter.h b/gfx/layers/LayerSorter.h
new file mode 100644
index 000000000..b9f776e83
--- /dev/null
+++ b/gfx/layers/LayerSorter.h
@@ -0,0 +1,21 @@
+/* -*- Mode: C++; tab-width: 20; 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 GFX_LAYERSORTER_H
+#define GFX_LAYERSORTER_H
+
+#include "nsTArray.h"
+
+namespace mozilla {
+namespace layers {
+
+class Layer;
+
+void SortLayersBy3DZOrder(nsTArray<Layer*>& aLayers);
+
+} // namespace layers
+} // namespace mozilla
+
+#endif /* GFX_LAYERSORTER_H */