Roll src/third_party/webrtc d8d15937da6d..a7dad03fb178 (1 commits)

https://webrtc.googlesource.com/src.git/+log/d8d15937da6d..a7dad03fb178

git log d8d15937da6d..a7dad03fb178 --date=short --first-parent --format='%ad %ae %s'
2020-03-11 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision da6a45d3..3bc28c82 (749241:749350)

Created with:
  gclient setdep -r src/third_party/webrtc@a7dad03fb178

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: I019ccc0129e83573a080eaca93e402b480787a26
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2099397Reviewed-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@{#749481}

DEPS

@@ -1454,7 +1454,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + '84ee597cdeae08bb26e578fc66a35bcf35f633f4',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'd8d15937da6d6bc76c5b8411e08cb2b18ca0b07b',
+    Var('webrtc_git') + '/src.git' + '@' + 'a7dad03fb17849116831358a2bafee57e4b4de6a',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),