All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=731675

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgps2ErgoM


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

android-one

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8977267164389495520

=== Auto-CCing suspected CL author lpy@chromium.org ===

Hi lpy@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : lpy
  Commit : 5c265a308a311a7d65ab37c10cf84830ddea72d5
  Date   : Tue Jun 06 21:51:01 2017
  Subject: [GRC] GRC service plumbing in Blink.

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : speedometer
  Metric       : Total/Total
  Change       : 1.01% | 35960.2541667 -> 36323.7775

Revision             Result                  N
chromium@477348      35960.3 +- 245.828      6       good
chromium@477419      35983.3 +- 434.422      9       good
chromium@477422      36132.5 +- 724.984      14      good
chromium@477423      36385.0 +- 778.746      14      bad       <--
chromium@477424      36312.0 +- 312.099      9       bad
chromium@477428      36362.0 +- 388.039      6       bad
chromium@477437      36424.9 +- 574.413      6       bad
chromium@477454      36506.2 +- 421.466      6       bad
chromium@477489      36323.8 +- 392.611      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 speedometer

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8977267164389495520

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=6265042971918336


| 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 Speed>Bisection.  Thank you!

By taking a look at the graph I think this is a false alert? Looks like it's jumping and there's a pattern in the graph.

The patch about GRC plumbing in blink should not affect speedometer and the it's not enabled (behind the flag).

Agreed with #4