Robustifying and simplifying the level controller complexity tests

The level controller complexity tests have lately been
flaky, with many false results and with a huge
variance.

This CL addresses that by changing the way the
API call durations are measured, using a warmup
period and a longer interval for computing the
timing estimates.

Furthermore, this CL reduces the number of tests
to compensate for the fact that the tests now are
more expensive, as well as to reduce the number
of regressions further.

BUG=webrtc:6614, webrtc:6685, 666725
Committed: https://crrev.com/dbc960c045ddb7f166a3d715614cff4680658572
Cr-Commit-Position: refs/heads/master@{#15440}

[peah-webrtc, 2016-12-06 08:06:20]

Description was changed from

==========
Modified the level controller unittest


Modified the level controller unittest

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

to

==========
The level controller complexity tests have lately been
flaky, with many false results and with a huge 
variance.

This CL addresses that by changing the way the 
API call durations are measured, using a warmup
period and a longer interval for computing the 
timing estimates.

Furthermore, this CL reduces the number of tests
to compensate for the fact that the tests now are
more expensive, as well as to reduce the number
of regressions further.

BUG=webrtc:6614
==========

[peah-webrtc, 2016-12-06 08:06:37]

peah@webrtc.org changed reviewers:
+ phoglund@webrtc.org

[peah-webrtc, 2016-12-06 08:06:37]

phoglund@: PTAL

Thanks!

[peah-webrtc, 2016-12-06 08:22:17]

Description was changed from

==========
The level controller complexity tests have lately been
flaky, with many false results and with a huge 
variance.

This CL addresses that by changing the way the 
API call durations are measured, using a warmup
period and a longer interval for computing the 
timing estimates.

Furthermore, this CL reduces the number of tests
to compensate for the fact that the tests now are
more expensive, as well as to reduce the number
of regressions further.

BUG=webrtc:6614
==========

to

==========
The level controller complexity tests have lately been
flaky, with many false results and with a huge 
variance.

This CL addresses that by changing the way the 
API call durations are measured, using a warmup
period and a longer interval for computing the 
timing estimates.

Furthermore, this CL reduces the number of tests
to compensate for the fact that the tests now are
more expensive, as well as to reduce the number
of regressions further.

BUG=webrtc:6614,webrtc:6685
==========

[phoglund, 2016-12-06 10:34:27]

Description was changed from

==========
The level controller complexity tests have lately been
flaky, with many false results and with a huge 
variance.

This CL addresses that by changing the way the 
API call durations are measured, using a warmup
period and a longer interval for computing the 
timing estimates.

Furthermore, this CL reduces the number of tests
to compensate for the fact that the tests now are
more expensive, as well as to reduce the number
of regressions further.

BUG=webrtc:6614,webrtc:6685
==========

to

==========
The level controller complexity tests have lately been
flaky, with many false results and with a huge 
variance.

This CL addresses that by changing the way the 
API call durations are measured, using a warmup
period and a longer interval for computing the 
timing estimates.

Furthermore, this CL reduces the number of tests
to compensate for the fact that the tests now are
more expensive, as well as to reduce the number
of regressions further.

BUG=webrtc:6614,webrtc:6685,666725
==========

[phoglund, 2016-12-06 10:34:35]

lgtm

[peah-webrtc, 2016-12-06 11:52:20]

The CQ bit was checked by peah@webrtc.org

[commit-bot: I haz the power, 2016-12-06 11:52:25]

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

[commit-bot: I haz the power, 2016-12-06 12:11:25]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481025140961670, "parent_rev":
"9b8817508d5aa0aae5dddb099e47f5a3c09e67b1", "commit_rev":
"3e1289fb0b8786665e96eb1f004cd8b70ff518c8"}

[commit-bot: I haz the power, 2016-12-06 12:11:27]

Description was changed from

==========
The level controller complexity tests have lately been
flaky, with many false results and with a huge 
variance.

This CL addresses that by changing the way the 
API call durations are measured, using a warmup
period and a longer interval for computing the 
timing estimates.

Furthermore, this CL reduces the number of tests
to compensate for the fact that the tests now are
more expensive, as well as to reduce the number
of regressions further.

BUG=webrtc:6614,webrtc:6685,666725
==========

to

==========
The level controller complexity tests have lately been
flaky, with many false results and with a huge 
variance.

This CL addresses that by changing the way the 
API call durations are measured, using a warmup
period and a longer interval for computing the 
timing estimates.

Furthermore, this CL reduces the number of tests
to compensate for the fact that the tests now are
more expensive, as well as to reduce the number
of regressions further.

BUG=webrtc:6614,webrtc:6685,666725
==========

[commit-bot: I haz the power, 2016-12-06 12:11:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-12-06 12:11:31]

Description was changed from

==========
The level controller complexity tests have lately been
flaky, with many false results and with a huge 
variance.

This CL addresses that by changing the way the 
API call durations are measured, using a warmup
period and a longer interval for computing the 
timing estimates.

Furthermore, this CL reduces the number of tests
to compensate for the fact that the tests now are
more expensive, as well as to reduce the number
of regressions further.

BUG=webrtc:6614,webrtc:6685,666725
==========

to

==========
The level controller complexity tests have lately been
flaky, with many false results and with a huge
variance.

This CL addresses that by changing the way the
API call durations are measured, using a warmup
period and a longer interval for computing the
timing estimates.

Furthermore, this CL reduces the number of tests
to compensate for the fact that the tests now are
more expensive, as well as to reduce the number
of regressions further.

BUG=webrtc:6614,webrtc:6685,666725

Committed: https://crrev.com/dbc960c045ddb7f166a3d715614cff4680658572
Cr-Commit-Position: refs/heads/master@{#15440}
==========

[commit-bot: I haz the power, 2016-12-06 12:11:32]

Patchset 1 (id:??) landed as
https://crrev.com/dbc960c045ddb7f166a3d715614cff4680658572
Cr-Commit-Position: refs/heads/master@{#15440}