Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/opensubdiv/osd/mtlCommon.h

@@ -0,0 +1,36 @@
+//
+//   Copyright 2013 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#ifndef OPENSUBDIV3_OSD_MTL_COMMON_H
+#define OPENSUBDIV3_OSD_MTL_COMMON_H
+
+#include "../version.h"
+
+#include <cstddef>
+
+@protocol MTLDevice;
+@protocol MTLCommandQueue;
+
+namespace OpenSubdiv {
+namespace OPENSUBDIV_VERSION {
+
+namespace Osd {
+
+class MTLContext {
+public:
+        id<MTLDevice> device = nullptr;
+        id<MTLCommandQueue> commandQueue = nullptr;
+};
+
+} // end namespace Osd
+
+} // end namespace OPENSUBDIV_VERSION
+using namespace OPENSUBDIV_VERSION;
+
+} // end namespace OpenSubdiv
+
+#endif //OPENSUBDIV3_OSD_MTL_COMMON_H