All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=758202

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4ecde49cbf2e11928142ad56a926c9b103ef30f4af000b10876b880aadc0e692


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

android-webview-nexus5X

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970460641515092944

=== 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_webview_arm64_aosp_perf_bisect
  Benchmark    : thread_times.key_silk_cases
  Metric       : thread_GPU_cpu_time_per_frame/inbox_app.html?toggle_drawer
  Change       : 18.65% | 1.61826430931 -> 1.92012358493

Revision             Result                    N
chromium@494340      1.61826 +- 0.0302572      6      good
chromium@494479      1.62979 +- 0.0837384      6      good
chromium@494484      1.60275 +- 0.104765       6      good
chromium@494486      1.62511 +- 0.0395981      6      good
chromium@494487      1.61365 +- 0.079575       6      good
chromium@494488      1.92042 +- 0.0395623      6      bad       <--
chromium@494497      1.90375 +- 0.0670549      6      bad
chromium@494514      1.89941 +- 0.0582976      6      bad
chromium@494548      1.90839 +- 0.130736       6      bad
chromium@494617      1.92012 +- 0.0615421      6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=inbox.app.html.toggle.drawer thread_times.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/8970460641515092944


For feedback, file a bug with component Speed>Bisection