Update screen simulcast config

Update screen simulcast config

Lower then bitrate so that the delta between the highest layer of the
lower stream and lowest layer of the higher stream is not too large.

BUG=webrtc:4172
This is a reland of the following CL:

Review-Url: https://codereview.webrtc.org/2791273002
Cr-Commit-Position: refs/heads/master@{#18232}
Committed: https://chromium.googlesource.com/external/webrtc/+/dceb42da3e7d24ffeee93e20c4ce1ce90953bf88

https: //codereview.webrtc.org/2883963002
Review-Url: https://codereview.webrtc.org/2966833002
Cr-Commit-Position: refs/heads/master@{#18913}
Committed: https://chromium.googlesource.com/external/webrtc/+/02569adfd492d84e2e568f3512a67ab45b96fc34

[sprang_webrtc, 2017-06-30 18:33:44]

The CQ bit was checked by sprang@webrtc.org to run a CQ dry run

[commit-bot: I haz the power, 2017-06-30 18:33:55]

Dry run: 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, 2017-06-30 19:13:07]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-06-30 19:13:08]

Dry run: This issue passed the CQ dry run.

[sprang_webrtc, 2017-06-30 19:15:07]

Description was changed from

==========
Update screen simulcast config and fix periodic encoder param update

Lower then bitrate so that the delta between the highest layer of the
lower stream and lowest layer of the higher stream is not too large.

BUG=webrtc:4172

This is a reland of the following CL:

Review-Url: https://codereview.webrtc.org/2791273002
Cr-Commit-Position: refs/heads/master@{#18232}
Committed:
https://chromium.googlesource.com/external/webrtc/+/dceb42da3e7d24ffeee93e20c...

The contents of that CL was inadvertently reverted here:
https://codereview.webrtc.org/2883963002
==========

to

==========
Update screen simulcast config

Lower then bitrate so that the delta between the highest layer of the
lower stream and lowest layer of the higher stream is not too large.

BUG=webrtc:4172

This is a reland of the following CL:

Review-Url: https://codereview.webrtc.org/2791273002
Cr-Commit-Position: refs/heads/master@{#18232}
Committed:
https://chromium.googlesource.com/external/webrtc/+/dceb42da3e7d24ffeee93e20c...

The contents of that CL was inadvertently reverted here:
https://codereview.webrtc.org/2883963002
==========

[sprang_webrtc, 2017-06-30 19:15:22]

sprang@webrtc.org changed reviewers:
+ stefan@webrtc.org

[sprang_webrtc, 2017-07-05 15:57:14]

ping

[stefan-webrtc, 2017-07-06 11:35:11]

lgtm

[sprang_webrtc, 2017-07-06 11:38:33]

The CQ bit was checked by sprang@webrtc.org

[commit-bot: I haz the power, 2017-07-06 11:38:44]

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, 2017-07-06 12:05:51]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1499341113736780, "parent_rev":
"168794c43c7e6d7d78b2b2286eeb42583347aba6", "commit_rev":
"02569adfd492d84e2e568f3512a67ab45b96fc34"}

[commit-bot: I haz the power, 2017-07-06 12:05:56]

Description was changed from

==========
Update screen simulcast config

Lower then bitrate so that the delta between the highest layer of the
lower stream and lowest layer of the higher stream is not too large.

BUG=webrtc:4172

This is a reland of the following CL:

Review-Url: https://codereview.webrtc.org/2791273002
Cr-Commit-Position: refs/heads/master@{#18232}
Committed:
https://chromium.googlesource.com/external/webrtc/+/dceb42da3e7d24ffeee93e20c...

The contents of that CL was inadvertently reverted here:
https://codereview.webrtc.org/2883963002
==========

to

==========
Update screen simulcast config

Lower then bitrate so that the delta between the highest layer of the
lower stream and lowest layer of the higher stream is not too large.

BUG=webrtc:4172

This is a reland of the following CL:

Review-Url: https://codereview.webrtc.org/2791273002
Cr-Commit-Position: refs/heads/master@{#18232}
Committed:
https://chromium.googlesource.com/external/webrtc/+/dceb42da3e7d24ffeee93e20c...

https: //codereview.webrtc.org/2883963002
Review-Url: https://codereview.webrtc.org/2966833002
Cr-Commit-Position: refs/heads/master@{#18913}
Committed:
https://chromium.googlesource.com/external/webrtc/+/02569adfd492d84e2e568f351...
==========

[commit-bot: I haz the power, 2017-07-06 12:05:57]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/02569adfd492d84e2e568f351...