All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=700078

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1LGwqgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglO2b6QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglIuLowoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1PC-0QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1IX45goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1OzK6QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1Nv7_woM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1Lu--AoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1MiezggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1NGOrAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglKPt_gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglM-k2QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglOfQqgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglMHO9QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDglNbbigoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1OWgvgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1MXPowkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1PutugoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1MWQqQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1KjR5AgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1OLY9QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1KripQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1LjatgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1Ji16QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1KT3hgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1MWzvAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1PatpgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1MylvQsM


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

android-nexus5
android-nexus5X
android-nexus6
android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8985574702351806208

This alert was found before M-60 branched. Closing as WontFix as this is believed to either be invalid or non-reproducible.