Roll WebRTC from 11ae285df916 to 0fd1ef135c84 (6 revisions)

https://webrtc.googlesource.com/src.git/+log/11ae285df916..0fd1ef135c84

2020-06-10 philipp.hancke@googlemail.com opus: add helper function to extract voice activity information
2020-06-10 tommi@webrtc.org Introduce BYPASS_PROXY_CONSTMETHOD0.
2020-06-10 titovartem@google.com Skip frame with unknown frame id in receiver part of DefaultVideoQualityAnalyzer
2020-06-10 handellm@webrtc.org RtpTransceiverInterface: introduce SetOfferedRtpHeaderExtensions.
2020-06-10 handellm@webrtc.org Revert "Migrate modules/pacing to webrtc::Mutex."
2020-06-10 ilnik@webrtc.org [VP9 SVC] Cleanup external reference control workaround

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: chromium:1027108,chromium:1051821
Tbr: webrtc-chromium-sheriffs-robots@google.com
Change-Id: I8fec87074f2a6ef62ebc0c0886c980040b44e878
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2239889
Reviewed-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@{#777101}

DEPS

@@ -1452,7 +1452,7 @@ deps = {
   },
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '11ae285df916db70158cb9808260ebae1f7db012',
+    Var('webrtc_git') + '/src.git' + '@' + '0fd1ef135c8492dd5886e9163126a193c6151706',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),