Roll src/third_party/webrtc 9c71e4936bc2..05c47926ff71 (1 commits)

https://webrtc.googlesource.com/src.git/+log/9c71e4936bc2..05c47926ff71

git log 9c71e4936bc2..05c47926ff71 --date=short --no-merges --format='%ad %ae %s'
2019-10-29 srte@webrtc.org Removes OnPacketAdded callback from feedback adapter.

Created with:
  gclient setdep -r src/third_party/webrtc@05c47926ff71

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

TBR=webrtc-chromium-sheriffs-robots@google.com

Bug: None
Change-Id: I40693deb83acf59549c2042fb06cbc1525b72829
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1886755Reviewed-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@{#710308}

DEPS

@@ -1507,7 +1507,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '2701c130839edbeb226735b0775966b6423d9e83',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '9c71e4936bc28858a2d2f2b64fb5593cefb6182a',
+    Var('webrtc_git') + '/src.git' + '@' + '05c47926ff71e6fe01d856aaf7888d8012252183',
 
   # Wuffs' canonical repository is at github.com/google/wuffs, but we use
   # Skia's mirror of Wuffs, the same as in upstream Skia's DEPS file.