All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=777793

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=8607ec9b3af970637cdb91e00ca994443ac3421818143277a0bc42eca44026f1


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

android-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8964861501094301792

=== 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_nexus6_perf_bisect
  Benchmark    : smoothness.tough_animation_cases
  Metric       : frame_times/balls_javascript_canvas.html
  Change       : 2.08% | 114.2400001 -> 116.231953395

Revision             Result                  N
chromium@509188      114.24 +- 2.88872       9       good
chromium@509190      114.151 +- 2.21176      6       good
chromium@509191      117.125 +- 1.13993      6       bad       <--
chromium@509194      117.841 +- 1.5784       6       bad
chromium@509199      117.106 +- 2.06045      6       bad
chromium@509210      117.263 +- 1.43188      6       bad
chromium@509232      115.732 +- 3.72038      14      bad
chromium@509275      116.232 +- 3.4188       9       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=balls.javascript.canvas.html smoothness.tough_animation_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8964861501094301792


For feedback, file a bug with component Speed>Bisection