Merge "Replace libchrome string_util to libbase strings" into main am: 59630eaaaf am: 0b1cce713b

Original change: https://android-review.googlesource.com/c/platform/system/security/+/3272834

Change-Id: Id0700e16563eabd9f964838c5e65319745940748
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>