Roll WebRTC from 8d875587d515 to 70026f9d14f0 (2 revisions)

https://webrtc.googlesource.com/src.git/+log/8d875587d515..70026f9d14f0

2020-09-18 kwiberg@webrtc.org Put UntypedFunction in untyped_function.h, not function.h
2020-09-18 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 9cee95fc..86ce521c (808139:808263)

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: I0da03f6637642f5ca5637205bf60364f46f39922
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2418831Reviewed-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@{#808349}

DEPS

@@ -1476,7 +1476,7 @@ deps = {
   },
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '8d875587d515694d377ec59df53f7c68acae44b7',
+    Var('webrtc_git') + '/src.git' + '@' + '70026f9d14f000de17c2f101d6cd9c720fae48a2',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),