diff -r 000000000000 -r 6474c204b198 gfx/layers/ipc/ShadowLayerUtils.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/layers/ipc/ShadowLayerUtils.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,97 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* 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_ShadowLayerUtils_h
+#define IPC_ShadowLayerUtils_h
+
+#include "ipc/IPCMessageUtils.h"
+#include "GLContextTypes.h"
+#include "SurfaceTypes.h"
+#include "mozilla/WidgetUtils.h"
+
+#if defined(MOZ_ENABLE_D3D10_LAYER)
+# include "mozilla/layers/ShadowLayerUtilsD3D10.h"
+#endif
+
+#if defined(XP_MACOSX)
+#define MOZ_HAVE_PLATFORM_SPECIFIC_LAYER_BUFFERS
+#endif
+
+#if defined(MOZ_X11)
+# include "mozilla/layers/ShadowLayerUtilsX11.h"
+#else
+namespace mozilla { namespace layers {
+struct SurfaceDescriptorX11 {
+  bool operator==(const SurfaceDescriptorX11&) const { return false; }
+};
+} }
+#endif
+
+#if defined(MOZ_WIDGET_GONK)
+# include "mozilla/layers/ShadowLayerUtilsGralloc.h"
+#else
+namespace mozilla { namespace layers {
+struct MagicGrallocBufferHandle {
+  bool operator==(const MagicGrallocBufferHandle&) const { return false; }
+};
+} }
+#endif
+
+namespace IPC {
+
+#if !defined(MOZ_HAVE_SURFACEDESCRIPTORX11)
+template <>
+struct ParamTraits<mozilla::layers::SurfaceDescriptorX11> {
+  typedef mozilla::layers::SurfaceDescriptorX11 paramType;
+  static void Write(Message*, const paramType&) {}
+  static bool Read(const Message*, void**, paramType*) { return false; }
+};
+#endif  // !defined(MOZ_HAVE_XSURFACEDESCRIPTORX11)
+
+template<>
+struct ParamTraits<mozilla::gl::SharedTextureShareType>
+{
+  typedef mozilla::gl::SharedTextureShareType paramType;
+
+  static void Write(Message* msg, const paramType& param)
+  {
+    static_assert(sizeof(paramType) <= sizeof(int32_t),
+                  "TextureShareType assumes to be int32_t");
+    WriteParam(msg, int32_t(param));
+  }
+
+  static bool Read(const Message* msg, void** iter, paramType* result)
+  {
+    int32_t type;
+    if (!ReadParam(msg, iter, &type))
+      return false;
+
+    *result = paramType(type);
+    return true;
+  }
+};
+
+#if !defined(MOZ_HAVE_SURFACEDESCRIPTORGRALLOC)
+template <>
+struct ParamTraits<mozilla::layers::MagicGrallocBufferHandle> {
+  typedef mozilla::layers::MagicGrallocBufferHandle paramType;
+  static void Write(Message*, const paramType&) {}
+  static bool Read(const Message*, void**, paramType*) { return false; }
+};
+#endif  // !defined(MOZ_HAVE_XSURFACEDESCRIPTORGRALLOC)
+
+template <>
+struct ParamTraits<mozilla::ScreenRotation>
+  : public ContiguousEnumSerializer<
+             mozilla::ScreenRotation,
+             mozilla::ROTATION_0,
+             mozilla::ROTATION_COUNT>
+{};
+
+} // namespace IPC
+
+#endif // IPC_ShadowLayerUtils_h