All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=742341

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=769990cffeea69436eea991713ec82a5b9dc692b69df3c97f4d3057bad4fe0ab


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

android-nexus5X
android-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8974178167605277360

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

Suspected Commit
  Author : Christopher Cameron
  Commit : 77e966647f6b495fe44772086c709528c711fc6e
  Date   : Mon Jul 10 17:45:28 2017
  Subject: Make SkImage_Lazy::onMakeColorSpace return a SkImage_Lazy

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : system_health.common_mobile
  Metric       : cpu_time_percentage_avg/load_games/load_games_bubbles
  Change       : 4.77% | 0.874076808116 -> 0.915781221792

Revision                             Result                     N
chromium@485436                      0.874077 +- 0.0102736      6       good
chromium@485477                      0.868562 +- 0.0146187      6       good
chromium@485488                      0.878116 +- 0.0247677      14      good
chromium@485491                      0.871134 +- 0.0229568      9       good
chromium@485491,skia@9f772a44fe      0.876265 +- 0.0349859      6       good
chromium@485491,skia@62ae664e74      0.874078 +- 0.0306709      14      good
chromium@485491,skia@77e966647f      0.913301 +- 0.128274       14      bad       <--
chromium@485491,skia@d8ddf1bbb4      0.932023 +- 0.084201       9       bad
chromium@485492                      0.919474 +- 0.0684163      6       bad
chromium@485493                      0.919061 +- 0.137323       14      bad
chromium@485498                      0.933215 +- 0.0833246      9       bad
chromium@485518                      0.915781 +- 0.0539487      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=load.games.bubbles 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/8974178167605277360


For feedback, file a bug with component Speed>Bisection