diff -r 000000000000 -r 6474c204b198 gfx/layers/d3d10/ReadbackLayerD3D10.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/layers/d3d10/ReadbackLayerD3D10.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,33 @@
+/* -*- 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_READBACKLAYERD3D10_H
+#define GFX_READBACKLAYERD3D10_H
+
+#include "LayerManagerD3D10.h"
+#include "ReadbackLayer.h"
+
+namespace mozilla {
+namespace layers {
+
+class ReadbackLayerD3D10 :
+  public ReadbackLayer,
+  public LayerD3D10
+{
+public:
+    ReadbackLayerD3D10(LayerManagerD3D10 *aManager)
+    : ReadbackLayer(aManager, nullptr),
+      LayerD3D10(aManager)
+  {
+      mImplData = static_cast<LayerD3D10*>(this);
+  }
+
+  virtual Layer* GetLayer() { return this; }
+  virtual void RenderLayer() {}
+};
+
+} /* layers */
+} /* mozilla */
+#endif /* GFX_READBACKLAYERD3D10_H */