diff -r 000000000000 -r 6474c204b198 gfx/angle/src/common/angleutils.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/angle/src/common/angleutils.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,56 @@
+//
+// Copyright (c) 2002-2010 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// angleutils.h: Common ANGLE utilities.
+
+#ifndef COMMON_ANGLEUTILS_H_
+#define COMMON_ANGLEUTILS_H_
+
+#include <stddef.h>
+
+// A macro to disallow the copy constructor and operator= functions
+// This must be used in the private: declarations for a class
+#define DISALLOW_COPY_AND_ASSIGN(TypeName) \
+  TypeName(const TypeName&);               \
+  void operator=(const TypeName&)
+
+template <typename T, unsigned int N>
+inline unsigned int ArraySize(T(&)[N])
+{
+    return N;
+}
+
+template <typename T, unsigned int N>
+void SafeRelease(T (&resourceBlock)[N])
+{
+    for (unsigned int i = 0; i < N; i++)
+    {
+        SafeRelease(resourceBlock[i]);
+    }
+}
+
+template <typename T>
+void SafeRelease(T& resource)
+{
+    if (resource)
+    {
+        resource->Release();
+        resource = NULL;
+    }
+}
+
+#if defined(_MSC_VER)
+#define snprintf _snprintf
+#endif
+
+#define VENDOR_ID_AMD 0x1002
+#define VENDOR_ID_INTEL 0x8086
+#define VENDOR_ID_NVIDIA 0x10DE
+
+#define GL_BGRA4_ANGLEX 0x6ABC
+#define GL_BGR5_A1_ANGLEX 0x6ABD
+
+#endif // COMMON_ANGLEUTILS_H_