All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=800741

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=7455cafc4999e7cf63f70718032511539fcabb6dc32974b7162b2635bf47c862


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

android-nexus5

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8957782006035704464

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.tough_animation_cases
  Metric       : frame_times/css_value_type_transform_simple.html?api_web_animations_N_0316

Revision             Result                  N
chromium@527739      71.9311 +- 1.62125      21      good
chromium@527813      71.8817 +- 2.55477      21      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=css.value.type.transform.simple.html.api.web.animations.N.0316 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/8957782006035704464


For feedback, file a bug with component Speed>Bisection

U shaped revert patten -> closing.