Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/gmp-source/mpq/get_den.c

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+/* mpq_get_den(den,rat_src) -- Set DEN to the denominator of RAT_SRC.
+
+Copyright 1991, 1994, 1995, 2001, 2012 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of either:
+
+  * the GNU Lesser General Public License as published by the Free
+    Software Foundation; either version 3 of the License, or (at your
+    option) any later version.
+
+or
+
+  * the GNU General Public License as published by the Free Software
+    Foundation; either version 2 of the License, or (at your option) any
+    later version.
+
+or both in parallel, as here.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received copies of the GNU General Public License and the
+GNU Lesser General Public License along with the GNU MP Library.  If not,
+see https://www.gnu.org/licenses/.  */
+
+#include "gmp-impl.h"
+
+void
+mpq_get_den (mpz_ptr den, mpq_srcptr src)
+{
+  mp_size_t size = SIZ(DEN(src));
+  mp_ptr dp;
+
+  dp = MPZ_NEWALLOC (den, size);
+  SIZ(den) = size;
+  MPN_COPY (dp, PTR(DEN(src)), size);
+}