Roll WebRTC from 6c80aebd0036 to f8bc30f60549 (5 revisions)

https://webrtc.googlesource.com/src.git/+log/6c80aebd0036..f8bc30f60549

2020-12-06 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision d1dd90b2..a04842f6 (833763:833885)
2020-12-04 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 663e2bfe..d1dd90b2 (833628:833763)
2020-12-04 crodbro@webrtc.org Cleanup obsolete filtering of small packets in delay based estimator.
2020-12-04 sprang@webrtc.org Cleans up WebRTC-Pacer-SmallFirstProbePacket flag
2020-12-04 phancke@nvidia.com dump raw rtp packets in text2pcap format

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/webrtc-chromium-autoroll
Please CC webrtc-chromium-sheriffs-robots@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/master/autoroll/README.md

Bug: None
Tbr: webrtc-chromium-sheriffs-robots@google.com
Change-Id: Iad4e635799c11689364e383fc1c6353cbac20449
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2576836Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#834082}

DEPS

@@ -1545,7 +1545,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + '3c2fe3888658d82b47ca831d59a2e07579619c2d',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '6c80aebd00360ee00c84c7b14422c5fe475d8916',
+    Var('webrtc_git') + '/src.git' + '@' + 'f8bc30f60549486726deaa88919e309893f42050',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),