Revert "Roll WebRTC from 1933d3b677f5 to 3226e563d8ad (5 revisions)"

This reverts commit b07330e.

Reason for revert: reverting another roll so I can cleanly revert the previous one (have already reverted once at https://crrev.com/c/3396333, desired revert is https://crrev.com/c/3396754)

Original change's description:
> Roll WebRTC from 1933d3b677f5 to 3226e563d8ad (5 revisions)
>
> https://webrtc.googlesource.com/src.git/+log/1933d3b677f5..3226e563d8ad
>
> 2022-01-17 ssilkin@webrtc.org Reland "Disable frame dropping from codec settings."
> 2022-01-17 danilchap@webrtc.org Remove manual implementaion of the c++17 insert_or_assign
> 2022-01-17 nisse@webrtc.org Let a RepeatingTask stop itself by returning a delay of PlusInfinity.
> 2022-01-17 danilchap@webrtc.org Replace ABSL_FALLTHROUGH_INTENDED with c++17 attribute
> 2022-01-17 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 9e48a72..bfe2da8 (958852:960043)
>
> 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 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: None
> Tbr: webrtc-chromium-sheriffs-robots@google.com
> Change-Id: Ib4780202403c49d68a8ee1328dc11fada2e0fccd
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3396375
> Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
> Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
> Cr-Commit-Position: refs/heads/main@{#960155}

Bug: None
Change-Id: I5ae9d76e050cbe70f9cfd20eeb76042b91a5bcf5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3395974
Auto-Submit: Chloe Pelling <cpelling@google.com>
Commit-Queue: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#960228}

DEPS

@@ -1648,7 +1648,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + '72561785742eab5afee480368659cde144bca33c',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '3226e563d8adb25ae8f5f6b6030089235bbc90ef',
+    Var('webrtc_git') + '/src.git' + '@' + '1933d3b677f5f597f03cbea87750f70be60bb069',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),