Roll WebRTC from ff7913204ce2 to 294729f33cbf (1 revision)

https://webrtc.googlesource.com/src.git/+log/ff7913204ce2..294729f33cbf

2020-10-09 danilchap@webrtc.org Support layer skipping in full svc structures with 3 temporal layers

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: Icd877ef5a7e98f3fd9197ef35eb52df63408a5c1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2464103Reviewed-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@{#815844}

DEPS

@@ -1486,7 +1486,7 @@ deps = {
   },
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'ff7913204ce23f6888d206d16250a1429d0736db',
+    Var('webrtc_git') + '/src.git' + '@' + '294729f33cbfac484a4b77c29dd42f03ffe65fa2',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),