Rollback of "Use small BWE period when there is a true network degradation"

This is a rollback of https://chromium-review.googlesource.com/c/external/webrtc/+/616724 
it degraded results of the ANA testing

BUG=webrtc:8105
Review-Url: https://codereview.webrtc.org/3011323002
Cr-Commit-Position: refs/heads/master@{#19902}
Committed: https://webrtc.googlesource.com/src/+/b335e31bcb16f53883c7d205daf25f0dc1fe2662

[alexnarest, 2017-09-15 14:48:30]

Description was changed from

==========
This is a rollback of
https://chromium-review.googlesource.com/c/external/webrtc/+/616724 it degraded
results of the ANA testing

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

to

==========
This is a rollback of
https://chromium-review.googlesource.com/c/external/webrtc/+/616724 
it degraded results of the ANA testing

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

[alexnarest, 2017-09-15 14:48:31]

alexnarest@webrtc.org changed reviewers:
+ ivoc@webrtc.org, stefan@webrtc.org

[alexnarest, 2017-09-15 14:56:57]

PTAL

[ivoc, 2017-09-15 15:08:03]

lgtm. Please add BUG=webrtc:8105 to the description.

[alexnarest, 2017-09-15 15:24:57]

Description was changed from

==========
This is a rollback of
https://chromium-review.googlesource.com/c/external/webrtc/+/616724 
it degraded results of the ANA testing

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

to

==========
This is a rollback of
https://chromium-review.googlesource.com/c/external/webrtc/+/616724 
it degraded results of the ANA testing

BUG=webrtc:8105
==========

[stefan-webrtc, 2017-09-19 18:28:10]

The CQ bit was checked by stefan@webrtc.org

[stefan-webrtc, 2017-09-19 18:28:10]

lgtm

[commit-bot: I haz the power, 2017-09-19 18:28:20]

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, 2017-09-19 19:00:32]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1505845690113910, "parent_rev":
"75dd6d4b9682131e1d92d4afda46241e0fdea33c", "commit_rev":
"b335e31bcb16f53883c7d205daf25f0dc1fe2662"}

[commit-bot: I haz the power, 2017-09-19 19:00:38]

Description was changed from

==========
This is a rollback of
https://chromium-review.googlesource.com/c/external/webrtc/+/616724 
it degraded results of the ANA testing

BUG=webrtc:8105
==========

to

==========
This is a rollback of
https://chromium-review.googlesource.com/c/external/webrtc/+/616724 
it degraded results of the ANA testing

BUG=webrtc:8105

Review-Url: https://codereview.webrtc.org/3011323002
Cr-Commit-Position: refs/heads/master@{#19902}
Committed:
https://webrtc.googlesource.com/src/+/b335e31bcb16f53883c7d205daf25f0dc1fe2662
==========

[commit-bot: I haz the power, 2017-09-19 19:00:39]

Committed patchset #1 (id:1) as
https://webrtc.googlesource.com/src/+/b335e31bcb16f53883c7d205daf25f0dc1fe2662