Roll WebRTC from 21544ba0beb5 to 0fd55cc715bc (1 revision)

https://webrtc.googlesource.com/src.git/+log/21544ba0beb5..0fd55cc715bc

2020-06-04 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 8c883b89..43c8771f (774827:774929)

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: I436d899146ec4cef36d0a31a05260345d7550e83
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2229540Reviewed-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@{#774987}

DEPS

@@ -1452,7 +1452,7 @@ deps = {
   },
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '21544ba0beb522a846160bf6781798de333818d6',
+    Var('webrtc_git') + '/src.git' + '@' + '0fd55cc715bc40fd86adcc22e0302eba6537ca05',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),