All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=749340

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=a55f1dcf06a5dd723f22aac94c9b318ac6b06c9874e3f74ca0d7498cf8b58d6e


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

android-nexus7v2
chromium-rel-mac12-mini-8gb
linux-release

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8972961122202180080

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

Suspected Commit
  Author : Naina Raisinghani
  Commit : fd7f99c9125b7f9b054b3a32c0100b526792f74c
  Date   : Mon Jul 24 05:21:35 2017
  Subject: Remove code and tests using StyleSharing

Bisect Details
  Configuration: mac_10_12_mini_8gb_perf_bisect
  Benchmark    : blink_perf.paint
  Metric       : large-table-repaint/large-table-repaint
  Change       : 100.07% | 247.299833333 -> 494.780583333

Revision             Result                  N
chromium@488897      247.3 +- 3.63611        6      good
chromium@488906      254.565 +- 9.11193      6      good
chromium@488911      251.378 +- 4.28731      6      good
chromium@488913      251.037 +- 4.94161      6      good
chromium@488914      250.045 +- 2.42616      6      good
chromium@488915      494.781 +- 7.80953      6      bad       <--

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.paint

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8972961122202180080


For feedback, file a bug with component Speed>Bisection