All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=693462

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg2NfFhwoM


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

webrtc-mac-large-tests

I would guess it's due to this CL: https://chromium.googlesource.com/external/webrtc/+/280eb224e2e0630ec94a6072777d58354357ee67

but I also think It might be due to this CL (the build before the alert): https://chromium.googlesource.com/external/webrtc/+/2a8c2f589aa5e757cdb5d5cbb13f4494250ddf11 since there was a similar change in metrics when this CL landed: https://chromium.googlesource.com/external/webrtc/+/5f4712686550ba1d069c5e4c456ffcabe7ccba97

I don't think NetEq is even included in the apm_timing tests. This would exclude https://chromium.googlesource.com/external/webrtc/+/280eb224e2e0630ec94a6072777d58354357ee67.

My changes could not possibly affect these tests.
Closing this, as stats returned to normal by themselves.