Roll src/third_party/webrtc 27c293665e3a..d81a04e7b288 (2 commits)

https://webrtc.googlesource.com/src.git/+log/27c293665e3a..d81a04e7b288

git log 27c293665e3a..d81a04e7b288 --date=short --no-merges --format='%ad %ae %s'
2019-10-23 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision c0cca6e4..6dc3a51e (708426:708537)
2019-10-23 cz.theng@gmail.com Add multipleTouchEnabled for subview of RTCMTLVideoView and RTCEAGLVideoView

Created with:
  gclient setdep -r src/third_party/webrtc@d81a04e7b288

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/webrtc-chromium-autoroll
Please CC webrtc-chromium-sheriffs-robots@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

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

Bug: chromium:None
Change-Id: Ifcbdf13e82584e8873e0bfd845589efc7a234837
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1876189Reviewed-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@{#708596}

DEPS

@@ -1509,7 +1509,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '2701c130839edbeb226735b0775966b6423d9e83',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '27c293665e3a2b0e2de12236529773a7b9057f6e',
+    Var('webrtc_git') + '/src.git' + '@' + 'd81a04e7b288e0d1f596a2aa2892619636721e27',
 
   # Wuffs' canonical repository is at github.com/google/wuffs, but we use
   # Skia's mirror of Wuffs, the same as in upstream Skia's DEPS file.