Roll src/third_party/webrtc e61d72b37c64..00c71836144b (11 commits)

https://webrtc.googlesource.com/src.git/+log/e61d72b37c64..00c71836144b


git log e61d72b37c64..00c71836144b --date=short --no-merges --format='%ad %ae %s'
2018-06-16 danilchap@webrtc.org Replace rtc::Optional with absl::optional in media, ortc, p2p
2018-06-15 titovartem@webrtc.org Add base64 webrtc owned third_party dep
2018-06-15 phoglund@webrtc.org Make instructions for checkin_chrome_dep a bit clearer.
2018-06-15 srte@webrtc.org Adds trial to ignore video pacing for audio packets.
2018-06-15 jonasolsson@webrtc.org Refactor checks to use a copy of the new logging backend.
2018-06-15 yinwa@webrtc.org Fix a downstream test failure.
2018-06-15 srte@webrtc.org Adds trial to always send padding packets when not sending video.
2018-06-15 jonasolsson@webrtc.org Remove stringstreams from modules/video_coding/
2018-06-15 srte@webrtc.org Makes BBR congestion window more similar to QUIC.
2018-06-15 srte@webrtc.org Improves buffer time calculation in network control tester.
2018-06-15 danilchap@webrtc.org Replace rtc::Optional with absl::optional in audio, call and video


Created with:
  gclient setdep -r src/third_party/webrtc@00c71836144b

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=master.tryserver.chromium.linux:linux_chromium_archive_rel_ng;master.tryserver.chromium.mac:mac_chromium_archive_rel_ng

BUG=chromium:None,chromium:850493
TBR=webrtc-chromium-sheriffs-robots@google.com

Change-Id: I6ffa1cac7dd2e705ed84e9dee4649f7b3f9d6c54
Reviewed-on: https://chromium-review.googlesource.com/1103737Reviewed-by: webrtc-chromium-autoroll <webrtc-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#567944}

DEPS

@@ -1010,7 +1010,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '5e83981c2c44f24109b96b555d6865d481e0c609',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'e61d72b37c64d970851976a490dc9d65061e1568',
+    Var('webrtc_git') + '/src.git' + '@' + '00c71836144bebc1ffc61565f3bbb2048b7f4402',
 
   'src/third_party/xdg-utils': {
       'url': Var('chromium_git') + '/chromium/deps/xdg-utils.git' + '@' + 'd80274d5869b17b8c9067a1022e4416ee7ed5e0d',