All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=845865

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4ca7002778cffe8a9fcd4c5f8f6a3d7685b3abd7cb9a8592aa3f9199c6cf328e


Bot(s) for this bug's original alert(s):

webrtc-android-tests-nexus5-kitkat
webrtc-win-large-tests

Hi, Sergey, I would guess this is a duplicate of https://bugs.chromium.org/p/chromium/issues/detail?id=845114, just the windows bots not attempting to run tests until a few commits later. Can you have a look and confirm?

And also a few late android bots, linking them too here.

Changes in screenshare_slides_vp9_2sl are all positive.

There is significant drop of PSNR in vp9svc_3sl_medium and vp9svc_3sl_low. It is probably related to this issue - https://bugs.chromium.org/p/webrtc/issues/detail?id=9279.

I ran these tests locally with the latest libvpx rolled into chromium (e27a331778c4c99ec37262ea786a3b4cc2a491ac). The issue is fixed there.

Lets wait for results with the fixed libvpx.

PSNR in vp9svc_3sl_medium and vp9svc_3sl_low returned to normal level.

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