mandoline: write this after lunch.

mojo_runner: Get --trace-start working with generic mojo_runner.

Android didn't like our magic to automatically include a connection to mojo:tracing in ApplicationImpl. This does things the explicit way: including a mojo:TracingImpl in each and every mojo application package.

BUG=534895
Committed: https://crrev.com/8d23e41bbc4bdeebffe51784d483afb95f4be714
Cr-Commit-Position: refs/heads/master@{#360434}

[Elliot Glaysher, 2015-11-18 22:05:01]

Description was changed from

==========
mandoline: write this after lunch.

BUG=
==========

to

==========
mojo_runner: Get --trace-start working with generic mojo_runner.

Android didn't like our magic to automatically include a connection to
mojo:tracing in ApplicationImpl. This does things the explicit way: including a
mojo:TracingImpl in each and every mojo application package.

BUG=534895
==========

[Elliot Glaysher, 2015-11-18 22:05:01]

erg@chromium.org changed reviewers:
+ sky@chromium.org

[Elliot Glaysher, 2015-11-18 22:05:41]

sky: review

(This also adds some PlatformThread names so that the tracing output is nicer.)

[sky, 2015-11-18 22:13:23]

LGTM

[Elliot Glaysher, 2015-11-18 22:20:06]

The CQ bit was checked by erg@chromium.org

[commit-bot: I haz the power, 2015-11-18 22:22:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1459453003/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1459453003/20001

[commit-bot: I haz the power, 2015-11-18 22:47:06]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-11-18 22:47:48]

Patchset 2 (id:??) landed as
https://crrev.com/8d23e41bbc4bdeebffe51784d483afb95f4be714
Cr-Commit-Position: refs/heads/master@{#360434}