Add service name to trace event to GetService trace event

This data is useful to understand startup regressions from users.
Storing of service name in base factory is not a lot of overhead
considering that the strings are already part of binary.

BUG=900688
TBR=blundell@chromium.org

Change-Id: I240900515431fc56f005c7198ce0aea0645b3a62
Reviewed-on: https://chromium-review.googlesource.com/c/1311613
Reviewed-by: Colin Blundell <blundell@chromium.org>
Reviewed-by: oysteine <oysteine@chromium.org>
Reviewed-by: Cait Phillips <caitkp@chromium.org>
Commit-Queue: Colin Blundell <blundell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#606005}
4 files changed