Roll WebRTC from a45df0b3491e to b90546580ec3 (2 revisions)

https://webrtc.googlesource.com/src.git/+log/a45df0b3491e..b90546580ec3

2020-12-26 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 8baa5d6f..9534bf2b (839243:839344)
2020-12-25 webrtc-version-updater@webrtc-ci.iam.gserviceaccount.com Update WebRTC code version (2020-12-25T04:04:51).

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: Ia96ea743a203947496b3419482c9cc0c0d83ea0d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2604002Reviewed-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@{#839351}

DEPS

@@ -1514,7 +1514,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + '3c2fe3888658d82b47ca831d59a2e07579619c2d',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'a45df0b3491ea72cfcf40e21106eb046c8594223',
+    Var('webrtc_git') + '/src.git' + '@' + 'b90546580ec3e8236225f39f9e5e5e7b7128c24b',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),