Roll WebRTC from 621c33653f8e to de2049e85aec (1 revision)

https://webrtc.googlesource.com/src.git/+log/621c33653f8e..de2049e85aec

2020-05-26 eshr@google.com Unflake VideoStreamEncoderTest.StatsTracksCpuAdaptationStatsWhenSwitchingSource_Balanced

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: I05d1d9bb16f64735a5a28a376325089d1c6c25e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2215892Reviewed-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@{#771756}

DEPS

@@ -1453,7 +1453,7 @@ deps = {
   },
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '621c33653f8ed30891c21b5894c88e1857371e96',
+    Var('webrtc_git') + '/src.git' + '@' + 'de2049e85aec04043ee7b85d79f716b67ed9a5af',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),