Revert of Periodically update codec bit/frame rate settings.

Revert of Periodically update codec bit/frame rate settings. (patchset #8 id:140001 of https://codereview.webrtc.org/2883963002/ )

Reason for revert:
Breaks some Call perf tests that are not run by the try bots....

Original issue's description:
> Fix bug in vie_encoder.cc which caused channel parameters not to be updated at regular intervals, as it was intended.
> 
> That however exposes a bunch of failed test, so this CL also fixed a few other things:
> * FakeEncoder should trust the configured FPS value rather than guesstimating itself based on the realtime clock, so as not to completely undershoot targets in offline mode. Also, compensate for key-frame overshoots when outputting delta frames.
> * FrameDropper should not assuming incoming frame rate is 0 if no frames have been seen.
> * Fix a bunch of test cases that started failing because they were relying on the fake encoder undershooting.
> * Fix test 
> 
> BUG=7664
> 
> Review-Url: https://codereview.webrtc.org/2883963002
> Cr-Commit-Position: refs/heads/master@{#18473}
> Committed: https://chromium.googlesource.com/external/webrtc/+/6431e21da672a5f3bbf166d3d4d98b171d015706

TBR=stefan@webrtc.org,holmer@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=7664
Review-Url: https://codereview.webrtc.org/2923993002
Cr-Commit-Position: refs/heads/master@{#18475}
Committed: https://chromium.googlesource.com/external/webrtc/+/5390c4814d7880ea79edcd55596ea25e0d9b97ad

[sprang_webrtc, 2017-06-07 13:17:39]

The CQ bit was checked by sprang@webrtc.org

[sprang_webrtc, 2017-06-07 13:17:40]

Created Revert of Periodically update codec bit/frame rate settings.

[commit-bot: I haz the power, 2017-06-07 13:17:46]

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, 2017-06-07 13:17:49]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1496841459878150, "parent_rev":
"11c89f57ce177113fa9e698940f0278e3f1eef8d", "commit_rev":
"5390c4814d7880ea79edcd55596ea25e0d9b97ad"}

[commit-bot: I haz the power, 2017-06-07 13:17:57]

Description was changed from

==========
Revert of Periodically update codec bit/frame rate settings. (patchset #8
id:140001 of https://codereview.webrtc.org/2883963002/ )

Reason for revert:
Breaks some Call perf tests that are not run by the try bots....

Original issue's description:
> Fix bug in vie_encoder.cc which caused channel parameters not to be updated at
regular intervals, as it was intended.
> 
> That however exposes a bunch of failed test, so this CL also fixed a few other
things:
> * FakeEncoder should trust the configured FPS value rather than guesstimating
itself based on the realtime clock, so as not to completely undershoot targets
in offline mode. Also, compensate for key-frame overshoots when outputting delta
frames.
> * FrameDropper should not assuming incoming frame rate is 0 if no frames have
been seen.
> * Fix a bunch of test cases that started failing because they were relying on
the fake encoder undershooting.
> * Fix test 
> 
> BUG=7664
> 
> Review-Url: https://codereview.webrtc.org/2883963002
> Cr-Commit-Position: refs/heads/master@{#18473}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/6431e21da672a5f3bbf166d3d...

TBR=stefan@webrtc.org,holmer@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=7664
==========

to

==========
Revert of Periodically update codec bit/frame rate settings. (patchset #8
id:140001 of https://codereview.webrtc.org/2883963002/ )

Reason for revert:
Breaks some Call perf tests that are not run by the try bots....

Original issue's description:
> Fix bug in vie_encoder.cc which caused channel parameters not to be updated at
regular intervals, as it was intended.
> 
> That however exposes a bunch of failed test, so this CL also fixed a few other
things:
> * FakeEncoder should trust the configured FPS value rather than guesstimating
itself based on the realtime clock, so as not to completely undershoot targets
in offline mode. Also, compensate for key-frame overshoots when outputting delta
frames.
> * FrameDropper should not assuming incoming frame rate is 0 if no frames have
been seen.
> * Fix a bunch of test cases that started failing because they were relying on
the fake encoder undershooting.
> * Fix test 
> 
> BUG=7664
> 
> Review-Url: https://codereview.webrtc.org/2883963002
> Cr-Commit-Position: refs/heads/master@{#18473}
> Committed:
https://chromium.googlesource.com/external/webrtc/+/6431e21da672a5f3bbf166d3d...

TBR=stefan@webrtc.org,holmer@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=7664

Review-Url: https://codereview.webrtc.org/2923993002
Cr-Commit-Position: refs/heads/master@{#18475}
Committed:
https://chromium.googlesource.com/external/webrtc/+/5390c4814d7880ea79edcd555...
==========

[commit-bot: I haz the power, 2017-06-07 13:17:58]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/5390c4814d7880ea79edcd555...

[sprang_webrtc, 2017-06-07 14:23:58]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.webrtc.org/2924023002/ by sprang@webrtc.org.

The reason for reverting is: Create reland cl that we can patch with fix..