All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=760146

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=f0172ec64c40b93f2ccb71f06bd1f0432d2f593b0ac8fa069261a49087e77f75


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

android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8969912965357327568

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

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : smoothness.tough_canvas_cases
  Metric       : frame_times/tough_canvas_cases_canvas_toBlob.html

Revision             Result                   N
chromium@494757      16.7175 +- 0.244891      21      good
chromium@495589      16.7147 +- 0.186612      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=tough.canvas.cases.canvas.toBlob.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/8969912965357327568


For feedback, file a bug with component Speed>Bisection

This recovered on its own.