Roll WebRTC from 08a16c09bcf3 to 09eb6e249d4e (4 revisions)

https://webrtc.googlesource.com/src.git/+log/08a16c09bcf3..09eb6e249d4e

2020-06-08 ilnik@webrtc.org [VP9 SVC] Round spatial layers dimensions to ensure integer scaling factors are used
2020-06-08 tommi@webrtc.org Remove SetRTCPApplicationSpecificData.
2020-06-08 mbonadei@webrtc.org Use absl_deps in order to preapre to the Abseil component build release.
2020-06-08 sprang@webrtc.org Fixes incorrect padding setting for VP9 SVC.

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: Iacb0054b15ce68128a7eccd534dca945647efc6c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2236377Reviewed-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@{#776262}

DEPS

@@ -1452,7 +1452,7 @@ deps = {
   },
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '08a16c09bcf36468b405d6a02cf567bf5cc58631',
+    Var('webrtc_git') + '/src.git' + '@' + '09eb6e249d4e1f926dfa586bff9cc0de1c4cdefa',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),