All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759679

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e51fed62bd2da44645dd9e85e2800a01858ef92206242876303b5af76408e6be


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

android-nexus5

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970000181371638272

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

Suspected Commit
  Author : Morten Stenshorne
  Commit : c1bb58b26ee6e0d792f6e8aff9a3126cc2fa29af
  Date   : Tue Aug 15 19:20:31 2017
  Subject: When main axis is logical y, lay out flex items before getting intrinsic size.

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : smoothness.key_silk_cases
  Metric       : queueing_durations/inbox_app.html?toggle_drawer
  Change       : 28.60% | 1.21946387145 -> 1.5682451681

Revision             Result                   N
chromium@494400      1.21946 +- 0.234181      6      good
chromium@494446      1.22483 +- 0.219853      6      good
chromium@494469      1.17714 +- 0.203189      6      good
chromium@494480      1.23457 +- 0.10265       6      good
chromium@494486      1.20177 +- 0.188094      6      good
chromium@494487      1.15591 +- 0.126239      6      good
chromium@494488      1.56243 +- 0.357159      6      bad       <--
chromium@494489      1.49857 +- 0.225981      6      bad
chromium@494491      1.56825 +- 0.199798      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=inbox.app.html.toggle.drawer smoothness.key_silk_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970000181371638272


For feedback, file a bug with component Speed>Bisection