Roll src/third_party/webrtc 8770ce70746a..a7f77a7c05b5 (6 commits)

https://webrtc.googlesource.com/src.git/+log/8770ce70746a..a7f77a7c05b5


git log 8770ce70746a..a7f77a7c05b5 --date=short --no-merges --format='%ad %ae %s'
2018-11-07 alessiob@webrtc.org Isolating APM API build target: making :api an actual target.
2018-11-07 sprang@webrtc.org Update ObjCVideoEncoder to use GetEncoderInfo()
2018-11-07 nisse@webrtc.org Reland "Delete rtc::Pathname"
2018-11-07 perkj@webrtc.org Add counter to the end of FakeEncoder frames in order to make them unique.
2018-11-07 nisse@webrtc.org Add default constructor for rtc::Event
2018-11-07 qingsi@webrtc.org Resolve the race condition between mDNS name registration and


Created with:
  gclient setdep -r src/third_party/webrtc@a7f77a7c05b5

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:none
TBR=webrtc-chromium-sheriffs-robots@google.com

Change-Id: Ibb7c3f8a436ffa9057bf780107cb6da0e6016cd3
Reviewed-on: https://chromium-review.googlesource.com/c/1322929Reviewed-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@{#606032}

DEPS

@@ -1161,7 +1161,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '0d55c887e92b645f6effe753528323ab2ffd94c2',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '8770ce70746aec7190075b890eb8ffcaa48adfcd',
+    Var('webrtc_git') + '/src.git' + '@' + 'a7f77a7c05b5d26520fd01a773ffb2c8b15b60ff',
 
   'src/third_party/xdg-utils': {
       'url': Var('chromium_git') + '/chromium/deps/xdg-utils.git' + '@' + 'd80274d5869b17b8c9067a1022e4416ee7ed5e0d',