All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=650012

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgxaaDsgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgxYzz_woM


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

android-nexus9
chromium-rel-mac-retina

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9000579119164941216

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


=== Bisection aborted ===
The bisect was aborted because The metric values for the initial "good" and "bad" revisions do not represent a clear regression.
Please contact the the team (see below) if you believe this is in error.

=== Warnings ===
The following warnings were raised by the bisect job:

 * Bisect failed to reproduce the regression with enough confidence.

===== TESTED REVISIONS =====
Revision         Mean    Std Dev   N   Good?
chromium@420117  5.809   0.844414  17  good
chromium@420164  5.8435  0.989839  18  bad

Bisect job ran on: android_nexus9_perf_bisect
Bug ID: 650012

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests smoothness.top_25_smooth
Test Metric: first_gesture_scroll_update_latency/https___www.google.com_calendar_
Relative Change: 7.63%
Score: 0

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus9_perf_bisect/builds/2126
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9000579119164941216


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5271809165885440

| 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!

If this was ever a real regression, it seems to have recovered.