All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=777400

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=d9ed65b946112e90410fdab907b0ea037e4a5e1ebedd641c8489f4534a64ee34


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

android-nexus5

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8964939079286973984

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

Suspected Commit
  Author : Florin Malita
  Commit : e52c7e8f57c56d4b215406106eccabd11509d8eb
  Date   : Mon Oct 16 23:17:30 2017
  Subject: Remove support for conservative Path bounds

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.tough_canvas_cases
  Metric       : frame_times/http___spielzeugz.de_html5_liquid-particles.html
  Change       : 4.65% | 46.9326825961 -> 49.114863855

Revision             Result                   N
chromium@509185      46.9327 +- 1.594         6      good
chromium@509188      47.2003 +- 1.07898       6      good
chromium@509190      47.3418 +- 0.793788      6      good
chromium@509191      49.5288 +- 0.947088      6      bad       <--
chromium@509197      49.5961 +- 0.855748      6      bad
chromium@509209      49.1869 +- 0.879241      6      bad
chromium@509232      49.992 +- 0.75514        6      bad
chromium@509279      49.1149 +- 0.656375      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=http...spielzeugz.de.html5.liquid.particles.html smoothness.tough_canvas_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8964939079286973984


For feedback, file a bug with component Speed>Bisection