Update CPU monitor to use moving averages.

Update CPU monitor to use moving averages.

And improve accuracy a little.

BUG=b/28560555
R=wzh@webrtc.org

Committed: https://crrev.com/ef00ec1d4ebab9b60a0ac55b686b9c5ec5d12d27
Cr-Commit-Position: refs/heads/master@{#12631}

[AlexG, 2016-05-03 22:58:47]

glaznev@webrtc.org changed reviewers:
+ wzh@webrtc.org

[AlexG, 2016-05-03 22:58:48]

PTAL

[wzh, 2016-05-04 16:19:19]

lgtm

[AlexG, 2016-05-04 16:58:01]

The CQ bit was checked by glaznev@webrtc.org

[commit-bot: I haz the power, 2016-05-04 16:58:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1951663002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1951663002/20001

[AlexG, 2016-05-04 18:04:22]

Description was changed from

==========
Update CPU monitor to use moving averages.

And improve accuracy a little.

BUG=b/28560555
==========

to

==========
Update CPU monitor to use moving averages.

And improve accuracy a little.

BUG=b/28560555
R=wzh@webrtc.org

Committed:
https://chromium.googlesource.com/external/webrtc/+/ef00ec1d4ebab9b60a0ac55b6...
==========

[AlexG, 2016-05-04 18:04:23]

Committed patchset #2 (id:20001) manually as
ef00ec1d4ebab9b60a0ac55b686b9c5ec5d12d27 (presubmit successful).

[commit-bot: I haz the power, 2016-05-04 18:04:23]

Description was changed from

==========
Update CPU monitor to use moving averages.

And improve accuracy a little.

BUG=b/28560555
R=wzh@webrtc.org

Committed:
https://chromium.googlesource.com/external/webrtc/+/ef00ec1d4ebab9b60a0ac55b6...
==========

to

==========
Update CPU monitor to use moving averages.

And improve accuracy a little.

BUG=b/28560555
R=wzh@webrtc.org

Committed: https://crrev.com/ef00ec1d4ebab9b60a0ac55b686b9c5ec5d12d27
Cr-Commit-Position: refs/heads/master@{#12631}
==========