[OTS] Add support for the MATH table.

src/math_.h

Index: src/math_.h
diff --git a/src/math_.h b/src/math_.h
new file mode 100644
index 0000000000000000000000000000000000000000..91c54dbe11df3cb0e2328afbef5251efddc40323
--- /dev/null
+++ b/src/math_.h
@@ -0,0 +1,25 @@
+// Copyright (c) 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef OTS_MATH_H_
+#define OTS_MATH_H_
+
+#include "ots.h"
+
+namespace ots {
+
+struct OpenTypeMATH {
+  OpenTypeMATH()
+      : data(NULL),
+        length(0) {
+  }
+
+  const uint8_t *data;
+  size_t length;
+};
+
+}  // namespace ots
+
+#endif
+