commit b99afc65a575475141a42235bc8dbfa9bc277427
author Oystein Eftevaag <oysteine@chromium.org> Wed Jan 23 03:16:03 2019
committer Commit Bot <commit-bot@chromium.org> Wed Jan 23 03:16:03 2019
tree bbb6088af4d665d543d0c02fc977e1035530b5e7
parent 65baa66d27712e6c906966141af6c7e5bb9f182e

Tracing: Start the tracing service on-demand

Instead of each process connecting to the tracing service
on startup, the tracing service is now instead brought
up on demand (when something binds the Coordinator interface)
and will then pass pointers to the AgentRegistry and
PerfettoService to the other services so they can register themselves.

This is a prerequisite to having the tracing service run as a
sandboxed service (or we would always have a new background process
running): https://chromium-review.googlesource.com/c/chromium/src/+/1412016

Requires these prior CLs for service_manager manifest support:
* https://chromium-review.googlesource.com/c/chromium/src/+/1410124
* https://chromium-review.googlesource.com/c/chromium/src/+/1410384

TBR=yusukes@chromium.org (for trivial CrOS change)

Bug: 914579
Change-Id: Ia1c92fe2aa75e3411efbd119cb9443e8a78e4c8f
Reviewed-on: https://chromium-review.googlesource.com/c/1377593
Commit-Queue: oysteine <oysteine@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Kentaro Hara <haraken@chromium.org>
Reviewed-by: Eric Seckler <eseckler@chromium.org>
Reviewed-by: Sami Kyöstilä <skyostil@chromium.org>
Reviewed-by: Ehsan Chiniforooshan <chiniforooshan@chromium.org>
Reviewed-by: Ken Rockot <rockot@google.com>
Cr-Commit-Position: refs/heads/master@{#625059}