Roll src/third_party/webrtc 304da796abc6..2a99c0bf6765 (3 commits)

https://webrtc.googlesource.com/src.git/+log/304da796abc6..2a99c0bf6765


git log 304da796abc6..2a99c0bf6765 --date=short --no-merges --format='%ad %ae %s'
2018-07-31 alessiob@webrtc.org Fix MovingMoments::CalculateMoments.
2018-07-31 ssilkin@webrtc.org Increase RtpFrameReferenceFinder's frame buffer length to 100 frames.
2018-07-31 buildbot@webrtc.org Roll chromium_revision fb3a9711..36ff521e (579262:579363)


Created with:
  gclient setdep -r src/third_party/webrtc@2a99c0bf6765

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

BUG=chromium:866925,chromium:None
TBR=webrtc-chromium-sheriffs-robots@google.com

Change-Id: I7829d349a5886e7cd5dfa9877f07e1848d09cf1f
Reviewed-on: https://chromium-review.googlesource.com/1156905Reviewed-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@{#579461}

DEPS

@@ -1034,7 +1034,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '21dbf06b5aa6c7dc8cf56314d4a3f96f57956c53',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '304da796abc656877349dfbd65ccd94b77d6702b',
+    Var('webrtc_git') + '/src.git' + '@' + '2a99c0bf6765d9c4615236ba4e00886678b2ef76',
 
   'src/third_party/xdg-utils': {
       'url': Var('chromium_git') + '/chromium/deps/xdg-utils.git' + '@' + 'd80274d5869b17b8c9067a1022e4416ee7ed5e0d',