All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=845114

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=705f7c944e370a18f4529aecd3763ae4911a81cab910169da67903fc0704c6f0


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

webrtc-android-tests-nexus6-nougat

Large perf change after vp9 screensharing changes of cl https://webrtc-review.googlesource.com/76801. An expected improvement? Sergey, can you have a look and confirm?

It is not expected outcome but since this the change is positive (time between freezes increased) no actions are needed.

PS. Why do we run these perf tests on such weak device? It takes 140ms to encode frame.

Note that the alerts are for a range of android devices, from nexus4 and nexus7 (pretty old, I think) to a newer pixel device.