Convert some "unsafe" make_span() calls to span_from_ref()

This will facilitate removing unsafe_buffer usage in the future.

Fully automated change.

Change-Id: I0d5f0369fe002a61d6da83db807612cf6a51c064
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5758178
Owners-Override: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1336912}
NOKEYCHECK=True
GitOrigin-RevId: b075e1978c7c5e81cf2837cef5cca08fd00b8b06
1 file changed