All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=687051

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggOXTpQoM


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

chromium-webrtc-rel-7

holmer@: Do you know of any recent changes that could have caused this regression?

I suspect that this is a dupe of https://bugs.chromium.org/p/chromium/issues/detail?id=687030

Doesn't seem to have recovered. I can't see what CLs should have affected this. WDYT Per?

I have no idea either. I cannot find a culprit CL either. Do you know what this test does?

I think that it runs a regular webrtc call and measures the number of unique frames that are rendered.

eb9098d [Video] Pause videos with no audio when in the background. by avayvod · 5 weeks ago

May have something to do with these changes in Chromium:

https://chromium.googlesource.com/chromium/src/+/eb9098d5864f531fdc7d72550c4928daed0e626b

https://chromium.googlesource.com/chromium/src/+/349d304bdcd2747ab6ec7efb35b502180e53aecb

but those are just wild guesses...

kjellander, how would you suggest we go forward with an issue like this? How can we determine if this may have been caused by a change in the environment the bot runs in?

Sorry for the long delay here. Re #6: there hasn't been any changes in the machines lately and when that happens we try to inform the perf sheriffs.

This looks like a dup of  issue 681832 . The suspected range is off by one, see the previous range for suspected mcasas@ CL.

https://chromium.googlesource.com/chromium/src/+log/b520619b133f1b3609461153afd0ffb81bfd5bdc%5E..dc3d7f9ad23aef74a3b1f1d2fc83d999d3da80e4?pretty=fuller