All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=645549

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgkbGjuQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgka2XvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICg4fXI_QgM


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

chromium-rel-win7-dual
chromium-rel-win7-gpu-ati
chromium-rel-win8-dual

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9001972653221041088

===== BISECT JOB RESULTS =====
Status: completed


===== SUSPECTED CL(s) =====
Subject : [Autofill] Declare profile cleanup field trial groups for testing
Author  : rogerm
Commit description:
  
BUG=620414,  640669 

Review-Url: https://codereview.chromium.org/2279543003
Cr-Commit-Position: refs/heads/master@{#415631}
Commit  : f9f54bb9c82589bb0b00c7049b1844f00148db2b
Date    : Wed Aug 31 14:53:59 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev    N  Good?
chromium@415622  15.2171  0.144651   8  good
chromium@415627  15.4737  0.182321   8  good
chromium@415630  15.3895  0.15163    5  good
chromium@415631  16.1579  0.162221   5  bad    <--
chromium@415632  16.0526  0.193381   5  bad
chromium@415641  16.1368  0.0706127  5  bad
chromium@415660  15.9263  0.121167   5  bad

Bisect job ran on: winx64ati_perf_bisect
Bug ID: 645549

Test Command: src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --also-run-disabled-tests startup.warm.blank_page
Test Metric: open_tabs_time/open_tabs_time
Relative Change: 4.13%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/winx64ati_perf_bisect/builds/1557
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9001972653221041088


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6430260638253056

| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Tests>AutoBisect.  Thank you!