Roll src/third_party/webrtc 28209b43f4a1..340a62eb5a43 (1 commits)

https://webrtc.googlesource.com/src.git/+log/28209b43f4a1..340a62eb5a43

git log 28209b43f4a1..340a62eb5a43 --date=short --first-parent --format='%ad %ae %s'
2020-01-08 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 4bca0ab4..f9fb583f (729323:729442)

Created with:
  gclient setdep -r src/third_party/webrtc@340a62eb5a43

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: I50c04553c5076623a8aca4e1c9d27933095c39f5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1991792Reviewed-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@{#729534}

DEPS

@@ -1498,7 +1498,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '88d715c9115a5ce65c0bf660209dfeee9131ccd0',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '28209b43f4a1e7048c01f9dfb56ab5a873849766',
+    Var('webrtc_git') + '/src.git' + '@' + '340a62eb5a43fa476e1e7f1d76a49eb8f4e19fd5',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),