All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=760154

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=518084f417058a3a56e04c8e033ac7c40f564fe048638274a7e72412dbdb74a7


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

android-nexus5

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969912479677828528

=== BISECT JOB RESULTS ===
Perf regression found with culprit

Suspected Commit
  Author : Khushal
  Commit : 4ad05f3ae24fedcb1fc0438787d2ba4a5c61e520
  Date   : Thu Aug 17 23:13:43 2017
  Subject: cc: Use src_rect for checker-imaging size veto.

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : timeToFirstPaint_avg/browse_chrome/browse_chrome_newtab
  Change       : 17.55% | 603.7594 -> 709.719866667

Revision             Result                  N
chromium@495369      603.759 +- 26.951       6      good
chromium@495371      600.084 +- 34.5225      6      good
chromium@495372      702.325 +- 50.2732      6      bad       <--
chromium@495373      705.639 +- 29.8646      6      bad
chromium@495376      699.976 +- 23.896       6      bad
chromium@495383      704.66 +- 38.0823       6      bad
chromium@495396      705.061 +- 19.0432      6      bad
chromium@495422      696.993 +- 99.0969      6      bad
chromium@495475      709.72 +- 58.496        6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.chrome.newtab system_health.common_mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8969912479677828528


For feedback, file a bug with component Speed>Bisection