Roll src/third_party/webrtc 8c79c6e1af35..2e4f440fdeb6 (2 commits)

https://webrtc.googlesource.com/src.git/+log/8c79c6e1af35..2e4f440fdeb6

git log 8c79c6e1af35..2e4f440fdeb6 --date=short --first-parent --format='%ad %ae %s'
2020-01-27 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 08a3245b..5a8e8ca5 (735303:735421)
2020-01-27 srte@webrtc.org Revert "Only include overhead if using send side bandwidth estimation."

Created with:
  gclient setdep -r src/third_party/webrtc@2e4f440fdeb6

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/+/master/autoroll/README.md

Bug: None
Tbr: webrtc-chromium-sheriffs-robots@google.com
Change-Id: Ice9835e6440cad1f2b666668b060d8c9aa763719
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2023007Reviewed-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@{#735500}

DEPS

@@ -1501,7 +1501,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + 'ec18cc3262922e7dcdbe70243c6f40606f979144',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '8c79c6e1af354c526497082c79ccbe12af03a33e',
+    Var('webrtc_git') + '/src.git' + '@' + '2e4f440fdeb6d64f8b7d4a21f4f13ab4058436d3',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),