Add and modify a few ANA stats.

Add and modify a few ANA stats.

This CL adds seperate counters for ANA frame length increases and decreases, which gives more insight into what actions are taken. In addition, a new stat is added to track the sum of the uplink packet loss fraction that is set by the ANA FEC controller.

BUG=webrtc:8127
Review-Url: https://codereview.webrtc.org/3007243002
Cr-Commit-Position: refs/heads/master@{#19756}
Committed: https://chromium.googlesource.com/external/webrtc/+/0d0b9121282c3f63aaaa242779122f5b0c5db96c

[ivoc, 2017-09-07 10:50:11]

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

[ivoc, 2017-09-07 10:50:12]

Hi guys, I made a small CL to split one of the new ANA stats, and to add one
extra stat. I made this change in a seperate CL in order not to overcomplicate
the review for the parent CL (https://codereview.webrtc.org/3011623002/). PTAL,
and if possible I would like to land this before monday. Thanks!

[ivoc, 2017-09-07 12:23:51]

After some offline discussion with Alex, we decided to change the uplink packet
loss fraction stat into an instantaneous value. The thinking was that this would
be good enough since the value is already smoothed. PTAL.

[alexnarest, 2017-09-07 12:59:59]

lgtm

The actual collection code is in other CL?

[stefan-webrtc, 2017-09-08 09:42:38]

lgtm

[ivoc, 2017-09-08 15:15:02]

The CQ bit was checked by ivoc@webrtc.org

[ivoc, 2017-09-08 15:15:02]

The patchset sent to the CQ was uploaded after l-g-t-m from
alexnarest@webrtc.org, stefan@webrtc.org
Link to the patchset: https://codereview.webrtc.org/3007243002/#ps100001 (title:
"Rebase.")

[commit-bot: I haz the power, 2017-09-08 15:15:11]

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, 2017-09-08 15:29:30]

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

[commit-bot: I haz the power, 2017-09-08 15:29:31]

Try jobs failed on following builders:
  ios_api_framework on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios_api_framework/build...)

[ivoc, 2017-09-08 20:14:24]

The CQ bit was checked by ivoc@webrtc.org

[commit-bot: I haz the power, 2017-09-08 20:14:28]

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, 2017-09-08 20:24:21]

CQ is committing da patch.

Bot data: {"patchset_id": 100001, "attempt_start_ts": 1504901664413610,
"parent_rev": "7bd1f1bb5bc747af7050b22b288eebd930b9e528", "commit_rev":
"0d0b9121282c3f63aaaa242779122f5b0c5db96c"}

[commit-bot: I haz the power, 2017-09-08 20:24:27]

Description was changed from

==========
Add and modify a few ANA stats.

This CL adds seperate counters for ANA frame length increases and decreases,
which gives more insight into what actions are taken. In addition, a new stat is
added to track the sum of the uplink packet loss fraction that is set by the ANA
FEC controller.

BUG=webrtc:8127
==========

to

==========
Add and modify a few ANA stats.

This CL adds seperate counters for ANA frame length increases and decreases,
which gives more insight into what actions are taken. In addition, a new stat is
added to track the sum of the uplink packet loss fraction that is set by the ANA
FEC controller.

BUG=webrtc:8127

Review-Url: https://codereview.webrtc.org/3007243002
Cr-Commit-Position: refs/heads/master@{#19756}
Committed:
https://chromium.googlesource.com/external/webrtc/+/0d0b9121282c3f63aaaa24277...
==========

[commit-bot: I haz the power, 2017-09-08 20:24:28]

Committed patchset #6 (id:100001) as
https://chromium.googlesource.com/external/webrtc/+/0d0b9121282c3f63aaaa24277...