Roll src/third_party/webrtc/ 70244d225..2ff7b6adf (2 commits)

https://webrtc.googlesource.com/src.git/+log/70244d225207..2ff7b6adf0b1

$ git log 70244d225..2ff7b6adf --date=short --no-merges --format='%ad %ae %s'

Created with:
  roll-dep src/third_party/webrtc
BUG=chromium:none


The AutoRoll server is located here: https://webrtc-chromium-roll.skia.org

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_archive_rel_ng;master.tryserver.chromium.mac:mac_chromium_archive_rel_ng
TBR=webrtc-chromium-sheriffs-robots@google.com

Change-Id: Ie4f9029dea6fc59a59df8454a14cffc7674ccfd4
Reviewed-on: https://chromium-review.googlesource.com/1026841
Commit-Queue: webrtc-chromium-autoroll <webrtc-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Reviewed-by: webrtc-chromium-autoroll <webrtc-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#553385}

DEPS

@@ -954,7 +954,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '7c0541da63f571512c49758cbc0767117997a270',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '70244d2252075174e3ea5573cb17386217bf5ff8', # commit position 21742
+    Var('webrtc_git') + '/src.git' + '@' + '2ff7b6adf0b13c54ad0e40a1654154ed12b705e6', # commit position 21742
 
   'src/third_party/xdg-utils': {
       'url': Var('chromium_git') + '/chromium/deps/xdg-utils.git' + '@' + 'd80274d5869b17b8c9067a1022e4416ee7ed5e0d',