tree 1c70a91c542d53d31855f57b0be5b79dde01d9d4
parent fafaa55964f96281317bb2ed2156586aac2036dc
author Cameron Dale <camrdale@google.com> 1576175885 +0000
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1576175885 +0000

Remove a use of absl/synchronization from Cobalt.

absl/synchronization is banned in Fuchsia:
https://fuchsia.googlesource.com/fuchsia/+/master/docs/development/languages/c-cpp/library_restrictions.md#third_party_absl_cpp

Replace it with src/lib/util/protected_fields.h instead.

Change-Id: Ic41bce7c63c5ee66b2e772247e66f0cf9af50001