Update freetype sources (2.6.2) in third party.

third_party/freetype2/src/src/otvalid/otvgpos.h

Index: third_party/freetype2/src/src/otvalid/otvgpos.h
diff --git a/third_party/freetype2/src/src/otvalid/otvgpos.h b/third_party/freetype2/src/src/otvalid/otvgpos.h
new file mode 100644
index 0000000000000000000000000000000000000000..a792bd951965ad76a2fa662734035f3705126c8b
--- /dev/null
+++ b/third_party/freetype2/src/src/otvalid/otvgpos.h
@@ -0,0 +1,36 @@
+/***************************************************************************/
+/*                                                                         */
+/*  otvgpos.h                                                              */
+/*                                                                         */
+/*    OpenType GPOS table validator (specification).                       */
+/*                                                                         */
+/*  Copyright 2004-2015 by                                                 */
+/*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
+/*                                                                         */
+/*  This file is part of the FreeType project, and may only be used,       */
+/*  modified, and distributed under the terms of the FreeType project      */
+/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
+/*  this file you indicate that you have read the license and              */
+/*  understand and accept it fully.                                        */
+/*                                                                         */
+/***************************************************************************/
+
+
+#ifndef __OTVGPOS_H__
+#define __OTVGPOS_H__
+
+
+FT_BEGIN_HEADER
+
+
+  FT_LOCAL( void )
+  otv_GPOS_subtable_validate( FT_Bytes       table,
+                              OTV_Validator  valid );
+
+
+FT_END_HEADER
+
+#endif /* __OTVGPOS_H__ */
+
+
+/* END */