Roll src/third_party/webrtc abd4273e43da..b2d711673390 (2 commits)

https://webrtc.googlesource.com/src.git/+log/abd4273e43da..b2d711673390


git log abd4273e43da..b2d711673390 --date=short --no-merges --format='%ad %ae %s'
2018-09-10 peah@webrtc.org AEC3: Correction of the suppressor behavior at delay changes
2018-09-10 danilchap@webrtc.org Allow different header extensions in 1st packet of a video frame


Created with:
  gclient setdep -r src/third_party/webrtc@b2d711673390

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

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=luci.chromium.try:linux_chromium_archive_rel_ng;luci.chromium.try:mac_chromium_archive_rel_ng

BUG=chromium:882396
TBR=webrtc-chromium-sheriffs-robots@google.com

Change-Id: I19018fd072ff9c12a936a165fe5e1df5f6d8be64
Reviewed-on: https://chromium-review.googlesource.com/1216803Reviewed-by: webrtc-chromium-autoroll <webrtc-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: webrtc-chromium-autoroll <webrtc-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#589964}

DEPS

@@ -1098,7 +1098,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '7ca87fb1d3da3b3d2060886e8c58e726d74c8219',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'abd4273e43da26f90b55472205fd4c1d475f7260',
+    Var('webrtc_git') + '/src.git' + '@' + 'b2d7116733902b9e9068992e172d72d870e54e03',
 
   'src/third_party/xdg-utils': {
       'url': Var('chromium_git') + '/chromium/deps/xdg-utils.git' + '@' + 'd80274d5869b17b8c9067a1022e4416ee7ed5e0d',