Roll src/third_party/webrtc 61380c09e241..1a68679e65af (3 commits)

https://webrtc.googlesource.com/src.git/+log/61380c09e241..1a68679e65af

git log 61380c09e241..1a68679e65af --date=short --first-parent --format='%ad %ae %s'
2020-01-20 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision f777073e..2a6702f0 (733282:733412)
2020-01-20 ilnik@webrtc.org Propagate is_bw_limited flag with bw allocation everywhere it's copied
2020-01-20 danilchap@webrtc.org Publish DependencyDescriptor structures in the api

Created with:
  gclient setdep -r src/third_party/webrtc@1a68679e65af

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: I9cf386f91647b8ea75e6bdc0376635abf61e5440
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2011213Reviewed-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@{#733449}

DEPS

@@ -1501,7 +1501,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + 'ec18cc3262922e7dcdbe70243c6f40606f979144',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '61380c09e2412eaab23c0b046991efc5a732b438',
+    Var('webrtc_git') + '/src.git' + '@' + '1a68679e65af33ac111c28396fe9fb8414d54f8a',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),