Roll src/third_party/webrtc 56452dd17bac..6ddbe2c5b003 (1 commits)

https://webrtc.googlesource.com/src.git/+log/56452dd17bac..6ddbe2c5b003

git log 56452dd17bac..6ddbe2c5b003 --date=short --first-parent --format='%ad %ae %s'
2020-01-10 phoglund@webrtc.org Extract results line plotting.

Created with:
  gclient setdep -r src/third_party/webrtc@6ddbe2c5b003

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: chromium:1029452
Tbr: webrtc-chromium-sheriffs-robots@google.com
Change-Id: Ide84015bf4518132b302c5fbd61aaf9cd4e10207
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1995302Reviewed-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@{#730161}

DEPS

@@ -1498,7 +1498,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '88d715c9115a5ce65c0bf660209dfeee9131ccd0',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '56452dd17bac91c6d70926ce4616f9c86ad6c557',
+    Var('webrtc_git') + '/src.git' + '@' + '6ddbe2c5b0030b0921f57a316f2bd8f613deb14d',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),