Roll src/third_party/webrtc e1092c0bc8b8..955f8fd0477e (9 commits)

https://webrtc.googlesource.com/src.git/+log/e1092c0bc8b8..955f8fd0477e

git log e1092c0bc8b8..955f8fd0477e --date=short --no-merges --format='%ad %ae %s'
2019-10-09 perkj@webrtc.org Add virtual method rtcp::RtcpPacket::SetSenderSsrc
2019-10-09 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision b2d00427..8e1616e4 (703937:704145)
2019-10-09 aleloi@webrtc.org Removing outdated tests.
2019-10-09 peah@webrtc.org AEC3: Send the spectral power estimates for all channels to AecState
2019-10-09 nisse@webrtc.org Delete large up-front allocation in LibvpxVp8Encoder::InitEncode
2019-10-09 gustaf@webrtc.org Run fullband processing at output rate on ARM
2019-10-09 peah@webrtc.org AEC3: Remove redundant class
2019-10-09 eshr@google.com Add Duration field to EventRateCounter
2019-10-09 saza@webrtc.org Delete AecState::EchoPathGain()

Created with:
  gclient setdep -r src/third_party/webrtc@955f8fd0477e

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,chromium:None,chromium:1012256,chromium:b/130016532
Change-Id: Iff2a55dcd7c672360792f55bb79fb7b6173ea188
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1849261Reviewed-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@{#704246}

DEPS

@@ -1470,7 +1470,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + '7c4e67ff117d6c640e6dd17989afe2fb7da7eecb',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'e1092c0bc8b8a2865da7ce6284ec19d189f71e02',
+    Var('webrtc_git') + '/src.git' + '@' + '955f8fd0477ea2d4137eff032184e02de8508043',
 
   'src/third_party/xdg-utils': {
       'url': Var('chromium_git') + '/chromium/deps/xdg-utils.git' + '@' + 'd80274d5869b17b8c9067a1022e4416ee7ed5e0d',