Roll src/third_party/webrtc 04f7bfc4192f..39be828c846a (2 commits)

https://webrtc.googlesource.com/src.git/+log/04f7bfc4192f..39be828c846a

git log 04f7bfc4192f..39be828c846a --date=short --first-parent --format='%ad %ae %s'
2020-03-09 deadbeef@webrtc.org Add commas between codec parameters in VideoReceiveStream logging.
2020-03-06 zetilovn@google.com Remove old FakeVP8Encoder alias.

Created with:
  gclient setdep -r src/third_party/webrtc@39be828c846a

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: Ic2af139fde4855d8507d2f79f98b55883c493c1d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2094678Reviewed-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@{#748117}

DEPS

@@ -1454,7 +1454,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + 'ec18cc3262922e7dcdbe70243c6f40606f979144',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '04f7bfc4192f5ce444b312afd287203ea53c99b6',
+    Var('webrtc_git') + '/src.git' + '@' + '39be828c846a6a6c01164158243207ad6efbf955',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),