Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/gmp-source/mp_get_fns.c

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+/* mp_get_memory_functions -- Get the allocate, reallocate, and free functions.
+
+Copyright 2002 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 <stdio.h>  /* for NULL */
+#include "gmp-impl.h"
+
+void
+mp_get_memory_functions (void *(**alloc_func) (size_t),
+			 void *(**realloc_func) (void *, size_t, size_t),
+			 void (**free_func) (void *, size_t)) __GMP_NOTHROW
+{
+  if (alloc_func != NULL)
+    *alloc_func = __gmp_allocate_func;
+
+  if (realloc_func != NULL)
+    *realloc_func = __gmp_reallocate_func;
+
+  if (free_func != NULL)
+    *free_func = __gmp_free_func;
+}