Roll src/third_party/webrtc 425d6aaa4ce2..4ed5b087f57f (10 commits)

https://webrtc.googlesource.com/src.git/+log/425d6aaa4ce2..4ed5b087f57f


git log 425d6aaa4ce2..4ed5b087f57f --date=short --no-merges --format='%ad %ae %s'
2019-07-30 noahric@chromium.org Skip empty strings in ToUtf(8|16).
2019-07-30 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 0959b866..394c077f (682230:682353)
2019-07-30 mbonadei@webrtc.org Revert "Reporting of decoding_codec_plc events"
2019-07-30 nisse@webrtc.org Mark the audio_generator_factory target as testonly
2019-07-30 mbonadei@webrtc.org Make it possible to reuse RTCEventLog conversion functions.
2019-07-30 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 3c3851d3..0959b866 (681486:682230)
2019-07-30 titovartem@webrtc.org Update documentation on VideoConfig.simulcast_config.
2019-07-30 mbonadei@webrtc.org Disable -Wunguarded-availability for apprtc_signaling.
2019-07-29 mellem@webrtc.org Revert "Only include payload in bytes sent/received."
2019-07-29 alexnarest@google.com Reporting of decoding_codec_plc events


Created with:
  gclient setdep -r src/third_party/webrtc@4ed5b087f57f

The AutoRoll server is located here: https://autoroll.skia.org/r/webrtc-chromium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.



TBR=webrtc-chromium-sheriffs-robots@google.com

Bug: chromium:None,chromium:None,chromium:None,chromium:None,chromium:None
Change-Id: I5ccefaa856645dd2e89bf89c62f076120b985564
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1727237Reviewed-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@{#682481}

DEPS

@@ -1375,7 +1375,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + 'abaae129d9a0c6e1e092067e0b105475df43352e',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '425d6aaa4ce256b263e307322195bd113c55d59f',
+    Var('webrtc_git') + '/src.git' + '@' + '4ed5b087f57fe8b116966ee2e60be2d3785975be',
 
   'src/third_party/xdg-utils': {
       'url': Var('chromium_git') + '/chromium/deps/xdg-utils.git' + '@' + 'd80274d5869b17b8c9067a1022e4416ee7ed5e0d',