Roll src/third_party/webrtc 1c34ca7676e8..a43777dead46 (1 commits)

https://webrtc.googlesource.com/src.git/+log/1c34ca7676e8..a43777dead46

git log 1c34ca7676e8..a43777dead46 --date=short --first-parent --format='%ad %ae %s'
2020-01-02 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision 2d488224..81693dc9 (727839:727940)

Created with:
  gclient setdep -r src/third_party/webrtc@a43777dead46

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: I0b925df1ac8f3a3a278a93bda30763e865ba725f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1985592Reviewed-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@{#727948}

DEPS

@@ -1483,7 +1483,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '53655df4cde60b121fc530842ba9a6d5dfec1ae1',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '1c34ca7676e882100e29ef47258bfb2e41c30cbf',
+    Var('webrtc_git') + '/src.git' + '@' + 'a43777dead46df4575a58c5ca2733c5f3ff0212b',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),