Record call stack profile serialization and deserialization time

Bug: 888716, 851163
Change-Id: I7792883b6e659590bd46a90a0b8efc765a7732ec
Reviewed-on: https://chromium-review.googlesource.com/c/1298474
Reviewed-by: Mike Wittman <wittman@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Commit-Queue: Xi Cheng <chengx@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603276}
2 files changed