[Blink-scheduler] Correct description for [Background/Foreground]RendererMainThreadLoad histograms.

[Blink-scheduler] Correct description for [Background/Foreground]RendererMainThreadLoad histograms.

r413783 introduced renderer load level monitoring and introduced the
RendererScheduler.[Background/ForegroundRendererMainThreadLoad] histograms.
r423509 changed how often these histograms were recorded without updating the
histogram descriptions. This CL updates the descriptions to correctly reflect
that these are recorded at most once per minute per renderer.

BUG=None

Review-Url: https://codereview.chromium.org/2856273003
Cr-Commit-Position: refs/heads/master@{#469273}
Committed: https://chromium.googlesource.com/chromium/src/+/77b81a68158815ad8b45bc66fd424f430cbf7da5

[karandeepb, 2017-05-03 21:23:57]

karandeepb@chromium.org changed reviewers:
+ altimin@chromium.org

[karandeepb, 2017-05-03 21:23:58]

PTAL altimin@.

[altimin, 2017-05-03 21:46:01]

altimin@chromium.org changed reviewers:
+ isherman@chromium.org

[altimin, 2017-05-03 21:46:02]

thanks, lgtm!

+isherman@ for histograms.xml

[Ilya Sherman, 2017-05-04 04:16:07]

The CQ bit was checked by isherman@chromium.org

[Ilya Sherman, 2017-05-04 04:16:08]

lgtm

[commit-bot: I haz the power, 2017-05-04 04:16:26]

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, 2017-05-04 05:21:06]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1493871367672160, "parent_rev":
"30e40b017ed7905c3bd08cef5e36003ed285d618", "commit_rev":
"77b81a68158815ad8b45bc66fd424f430cbf7da5"}

[commit-bot: I haz the power, 2017-05-04 05:21:38]

Description was changed from

==========
[Blink-scheduler] Correct description for
[Background/Foreground]RendererMainThreadLoad histograms.

r413783 introduced renderer load level monitoring and introduced the
RendererScheduler.[Background/ForegroundRendererMainThreadLoad] histograms.
r423509 changed how often these histograms were recorded without updating the
histogram descriptions. This CL updates the descriptions to correctly reflect
that these are recorded at most once per minute per renderer.

BUG=None
==========

to

==========
[Blink-scheduler] Correct description for
[Background/Foreground]RendererMainThreadLoad histograms.

r413783 introduced renderer load level monitoring and introduced the
RendererScheduler.[Background/ForegroundRendererMainThreadLoad] histograms.
r423509 changed how often these histograms were recorded without updating the
histogram descriptions. This CL updates the descriptions to correctly reflect
that these are recorded at most once per minute per renderer.

BUG=None

Review-Url: https://codereview.chromium.org/2856273003
Cr-Commit-Position: refs/heads/master@{#469273}
Committed:
https://chromium.googlesource.com/chromium/src/+/77b81a68158815ad8b45bc66fd42...
==========

[commit-bot: I haz the power, 2017-05-04 05:21:39]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/77b81a68158815ad8b45bc66fd42...