[Telemetry] Update android perf bot docs to include test trace information.

[Telemetry] Update android perf bot docs to include test trace information.

A test trace is a trace that shows which tests are running and for how long.

Review-Url: https://codereview.chromium.org/2617233002
Cr-Commit-Position: refs/heads/master@{#442085}
Committed: https://chromium.googlesource.com/chromium/src/+/a576f652af13438c3867a306ce847e87585dcb7b

[rnephew (Reviews Here), 2017-01-06 21:25:29]

rnephew@chromium.org changed reviewers:
+ eyaich@chromium.org, nednguyen@google.com, sullivan@chromium.org

[nednguyen, 2017-01-06 21:44:41]

lgtm

[rnephew (Reviews Here), 2017-01-06 21:47:55]

The CQ bit was checked by rnephew@chromium.org

[commit-bot: I haz the power, 2017-01-06 21:48:17]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-01-06 22:56:15]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1483739275868900, "parent_rev":
"8b39bd3c54837ff1bf5890fdf47ee21cf9b39398", "commit_rev":
"a576f652af13438c3867a306ce847e87585dcb7b"}

[commit-bot: I haz the power, 2017-01-06 22:56:45]

Description was changed from

==========
[Telemetry] Update android perf bot docs to include test trace information.

A test trace is a trace that shows which tests are running and for how long.
==========

to

==========
[Telemetry] Update android perf bot docs to include test trace information.

A test trace is a trace that shows which tests are running and for how long.

Review-Url: https://codereview.chromium.org/2617233002
Cr-Commit-Position: refs/heads/master@{#442085}
Committed:
https://chromium.googlesource.com/chromium/src/+/a576f652af13438c3867a306ce84...
==========

[commit-bot: I haz the power, 2017-01-06 22:56:45]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/a576f652af13438c3867a306ce84...