Roll WebRTC from 3cc1a6509bf6 to 7eccfc6933c7 (2 revisions)

https://webrtc.googlesource.com/src.git/+log/3cc1a6509bf6..7eccfc6933c7

2020-05-23 tommi@webrtc.org Trigger bots
2020-05-22 tommi@webrtc.org Fork NackModule and RtpVideoStreamReceiver

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: Icbc7da410cea8b9c71381118959e0d3add450414
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2213554Reviewed-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@{#771388}

DEPS

@@ -1453,7 +1453,7 @@ deps = {
   },
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '3cc1a6509bf6143f9d52d76a7648a9c8d3bdccea',
+    Var('webrtc_git') + '/src.git' + '@' + '7eccfc6933c7a7bc7a8af82faa45b2b96c87083e',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),