Roll WebRTC from e3e2618b1b05 to c2cc4d305a7c (3 revisions)

https://webrtc.googlesource.com/src.git/+log/e3e2618b1b05..c2cc4d305a7c

2020-08-31 ilnik@webrtc.org [adaptation] Expose target pixels and max framerate in VideoAdapter
2020-08-31 mbonadei@webrtc.org Move ABSL_MUST_USE_RESULT at the beginning of the method decl.
2020-08-28 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 4bf6d398..a50ca66b (802598:802712)

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: chromium:1116430,chromium:1122891
Tbr: webrtc-chromium-sheriffs-robots@google.com
Change-Id: Ib9b42743db058e452398d48bb87b59ce8eb603ea
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2384856Reviewed-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@{#803084}

DEPS

@@ -1471,7 +1471,7 @@ deps = {
   },
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'e3e2618b1b058d26e73e22953d5aaea99f0d7cae',
+    Var('webrtc_git') + '/src.git' + '@' + 'c2cc4d305a7c05a5de2cc957ffc94806a45d54a8',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),