Add use of sk_ieee_float_divide to init_stop_pos.

Avoids ubsan error.

Bug: oss-fuzz:55475
Change-Id: I6ef3c04a4c3ebd1600a12e05e3d2261a651d1cf2
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/777456
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Jim Van Verth <jvanverth@google.com>
1 file changed