Support base::Token serialization and deserialization

Change-Id: Ib245310f3a43dba9d014ba280e7d67dac3212c58
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1737189
Commit-Queue: Collin Baker <collinbaker@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/master@{#684164}
3 files changed