Roll src/third_party/webrtc cb70daa3fa9a..47cd4085b978 (1 commits)

https://webrtc.googlesource.com/src.git/+log/cb70daa3fa9a..47cd4085b978

git log cb70daa3fa9a..47cd4085b978 --date=short --first-parent --format='%ad %ae %s'
2020-04-03 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 3eea752c..ae03941a (756022:756130)

Created with:
  gclient setdep -r src/third_party/webrtc@47cd4085b978

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: If824b41a4171acffdbda91d2dc46e05ac2f9e5ae
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2135447Reviewed-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@{#756172}

DEPS

@@ -1458,7 +1458,7 @@ deps = {
   },
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'cb70daa3fa9a1ec35838944b776f4d52ec26c87f',
+    Var('webrtc_git') + '/src.git' + '@' + '47cd4085b978d14022be068fed518e691cc246ef',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),