Roll src/third_party/webrtc 4e5af96606b9..4092cd6db459 (8 commits)

https://webrtc.googlesource.com/src.git/+log/4e5af96606b9..4092cd6db459


git log 4e5af96606b9..4092cd6db459 --date=short --no-merges --format='%ad %ae %s'
2018-09-04 jonasolsson@webrtc.org Consolidate loggability checks and replace streams.
2018-09-04 mbonadei@webrtc.org Add nogncheck for headers of codecs not used in Chromium.
2018-09-04 ilnik@webrtc.org Reland "Remove obsolete field trial from the tests"
2018-09-04 ilnik@webrtc.org Revert "Remove obsolete field trial from the tests"
2018-09-04 sakal@webrtc.org Enable ULPFEC for kVideoCodecGeneric if GenericPictureId is enabled.
2018-09-04 magjed@webrtc.org Reland "Fix a bug in barcode_decoder.py"
2018-09-04 nisse@webrtc.org Delete class EventTimerWrapper.
2018-09-03 brandtr@webrtc.org Remove MediaOptimization::Reset.


Created with:
  gclient setdep -r src/third_party/webrtc@4092cd6db459

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:824831
TBR=webrtc-chromium-sheriffs-robots@google.com

Change-Id: Idabeba5988358f506170e35d914296813b5ba935
Reviewed-on: https://chromium-review.googlesource.com/1204052Reviewed-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@{#588502}

DEPS

@@ -1098,7 +1098,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '7ca87fb1d3da3b3d2060886e8c58e726d74c8219',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '4e5af96606b94b048132cbf61514fa2b12cb0edc',
+    Var('webrtc_git') + '/src.git' + '@' + '4092cd6db459ab8152588143b7b76e0946d2c433',
 
   'src/third_party/xdg-utils': {
       'url': Var('chromium_git') + '/chromium/deps/xdg-utils.git' + '@' + 'd80274d5869b17b8c9067a1022e4416ee7ed5e0d',