Roll src/third_party/webrtc e9721f2f0830..fa2b2d62d77d (4 commits)

https://webrtc.googlesource.com/src.git/+log/e9721f2f0830..fa2b2d62d77d


git log e9721f2f0830..fa2b2d62d77d --date=short --no-merges --format='%ad %ae %s'
2018-08-16 nisse@webrtc.org Delete use of RtpPayloadRegistry.
2018-08-16 titovartem@webrtc.org Do not use FakeNetworkPipe::SetConfig.
2018-08-16 saza@webrtc.org Set AEC2 suppression to high by default
2018-08-16 titovartem@webrtc.org Add FakeNetworkPipe ctor from NetworkSimulationInterface.


Created with:
  gclient setdep -r src/third_party/webrtc@fa2b2d62d77d

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

Change-Id: Ifca3f6ef4dc638b0a073006f6d5cad5e49ba8fec
Reviewed-on: https://chromium-review.googlesource.com/1177983Reviewed-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@{#583709}

DEPS

@@ -1049,7 +1049,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '7ca87fb1d3da3b3d2060886e8c58e726d74c8219',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'e9721f2f08307e67c602a3c614ec144c5fb7e5c2',
+    Var('webrtc_git') + '/src.git' + '@' + 'fa2b2d62d77d4ca4e0cc04d0cc0702864e59db52',
 
   'src/third_party/xdg-utils': {
       'url': Var('chromium_git') + '/chromium/deps/xdg-utils.git' + '@' + 'd80274d5869b17b8c9067a1022e4416ee7ed5e0d',