Roll src/third_party/webrtc 4e19670d3a93..5bd8cb74a659 (5 commits)

https://webrtc.googlesource.com/src.git/+log/4e19670d3a93..5bd8cb74a659

git log 4e19670d3a93..5bd8cb74a659 --date=short --no-merges --format='%ad %ae %s'
2019-10-30 hbos@webrtc.org Revert "Reland "Implemented screen enumeration and selection for desktop capture under X11 using the X Resize and Rotate extension version 1.5.""
2019-10-30 minyue@webrtc.org Renaming opus_interface.c to opus_interface.cc.
2019-10-30 danilchap@webrtc.org Split out counting unique rtp timestamps from packet_buffer
2019-10-30 trevor.axiom@gmail.com Reland "Implemented screen enumeration and selection for desktop capture under X11 using the X Resize and Rotate extension version 1.5."
2019-10-30 ilnik@webrtc.org Make update_rect optional in VideoFrame

Created with:
  gclient setdep -r src/third_party/webrtc@5bd8cb74a659

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:396091,chromium:b/143582588,chromium:None,chromium:396091
Change-Id: I95e80b26b566d9d6c5179d95130581fbf0b8c17d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1891380Reviewed-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@{#711050}

DEPS

@@ -1507,7 +1507,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + 'dd55f3ca8f2ea716ca917a4aaf36f0729fe902b1',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '4e19670d3a93d0c78607ded97c040fe9b4b8f18c',
+    Var('webrtc_git') + '/src.git' + '@' + '5bd8cb74a659c597fe582d6cfb71e4884fc7a231',
 
   # 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.