Roll src/third_party/webrtc b05ca4b6168c..987ef4825826 (3 commits)

https://webrtc.googlesource.com/src.git/+log/b05ca4b6168c..987ef4825826

git log b05ca4b6168c..987ef4825826 --date=short --first-parent --format='%ad %ae %s'
2020-03-05 terelius@webrtc.org Adds field trial to separate audio and video packets for delay-based overuse detection.
2020-03-05 srte@webrtc.org Always limit delay based bitrate by the acknowledged rate.
2020-03-05 danilchap@webrtc.org Fix dependency templates for VP8 3 temporal layers

Created with:
  gclient setdep -r src/third_party/webrtc@987ef4825826

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/+/master/autoroll/README.md

Bug: None
Tbr: webrtc-chromium-sheriffs-robots@google.com
Change-Id: I8e9ad1082995ae7cff049053b602810cef9b574c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2090215Reviewed-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@{#747425}

DEPS

@@ -1443,7 +1443,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + 'ec18cc3262922e7dcdbe70243c6f40606f979144',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'b05ca4b6168ccad0db5f6350d438272e59a3b9ca',
+    Var('webrtc_git') + '/src.git' + '@' + '987ef482582660003d21ecfb7096943cba623373',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),