Roll WebRTC from c85baeb485e2 to 40217a30c5c6 (2 revisions)

https://webrtc.googlesource.com/src.git/+log/c85baeb485e2..40217a30c5c6

2020-10-14 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision d18ea8bb..914c0473 (817098:817219)
2020-10-14 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision cc4512db..d18ea8bb (816967:817098)

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: I433c5e777aa6919f00d8e0d5400d21ccffcbf6e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2473817Reviewed-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@{#817338}

DEPS

@@ -1491,7 +1491,7 @@ deps = {
   },
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'c85baeb485e2d7c18e9927593c21b9f4f041c3f6',
+    Var('webrtc_git') + '/src.git' + '@' + '40217a30c5c69ee6b0a2078520b0c26479b8d925',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),