Make byte spans check for unique obj representations.

Bug: 382041497
Low-Coverage-Reason: LARGE_SCALE_REFACTOR no meaningful change in the relevant files
Change-Id: I06ab9d00e9405ede4664f1c12dad748ae9be5b1b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6092555
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Commit-Queue: Peter Kasting <pkasting@chromium.org>
Owners-Override: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1396409}
NOKEYCHECK=True
GitOrigin-RevId: e35c25c247d267bff835b25fcb19022c05b49fbf
3 files changed