Roll WebRTC from ba4d870acf36 to cc99299bbc9a (7 revisions)

https://webrtc.googlesource.com/src.git/+log/ba4d870acf36..cc99299bbc9a

2021-10-03 [email protected] Remove use_xcode_clang=true from iOS packaging script.
2021-10-03 [email protected] [-Wshadow] - Fix some warnings.
2021-10-03 [email protected] Update WebRTC code version (2021-10-03T04:05:03).
2021-10-01 [email protected] Make CroppedWindowCapturer more resilient
2021-10-01 [email protected] Add CreateAsyncDnsResolver to PacketSocketFactory API
2021-10-01 [email protected] audio/red: provide default fmtp line
2021-10-01 [email protected] Allow encoding string fields in new event log format.

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 [email protected] on the revert to ensure that a human
is aware of the problem.

To file a bug in WebRTC: https://bugs.chromium.org/p/webrtc/issues/entry
To file a bug in Chromium: https://bugs.chromium.org/p/chromium/issues/entry

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/main/autoroll/README.md

Bug: chromium:1245272
Tbr: [email protected]
Change-Id: Iaf3ec99c66ed6b30689ae846a612f2e49eca3433
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3200700
Commit-Queue: chromium-autoroll <[email protected]>
Bot-Commit: chromium-autoroll <[email protected]>
Cr-Commit-Position: refs/heads/main@{#927563}

Author: chromium-autoroll

DEPS

@@ -1648,7 +1648,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + 'b0291fd966b55a5efc496772555b94842bde1085',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'ba4d870acf36c857f9e8c54e09dadab930a6cf68',
+    Var('webrtc_git') + '/src.git' + '@' + 'cc99299bbc9a83c92721aee108f38abc9ad63c93',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),