Capture OSStatus Errors from Failed Keychain API Calls

Bug: 1473369,b:295866513
Low-Coverage-Reason: The helper is only a wrapper for Keychain APIs.
Change-Id: I07ebfa2d8c60264fbf70c677e76b4a91c9178b90
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4779214


Reviewed-by: Hamda Mare <hmare@google.com>
Commit-Queue: Sébastien Lalancette <seblalancette@chromium.org>
Reviewed-by: Alex Ilin <alexilin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1184809}