All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=633123

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgxuy-tQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgICgxvXDoQoM


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

android-nexus5X
android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/9005542052318718896

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

Hi chrishtr@chromium.org, the bisect results pointed to your CL below as possibly
causing a regression. Please have a look at this info and see whether
your CL be related.


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


===== SUSPECTED CL(s) =====
Subject : Fold compositing display items into contained drawings if the drawing is a singleton.
Author  : chrishtr
Commit description:
  
BUG= 628831 

Review-Url: https://codereview.chromium.org/2186643002
Cr-Commit-Position: refs/heads/master@{#408725}
Commit  : 09f3b178cfb677eaaf91a282df0d898a041378cd
Date    : Fri Jul 29 19:33:23 2016


===== TESTED REVISIONS =====
Revision         Mean     Std Dev   N  Good?
chromium@408722  18.5612  0.119108  5  good
chromium@408724  18.6425  0.138563  5  good
chromium@408725  19.1538  0.118683  5  bad    <--
chromium@408727  19.1252  0.108264  5  bad
chromium@408732  19.2139  0.129966  5  bad

Bisect job ran on: android_nexus7_perf_bisect
Bug ID: 633123

Test Command: src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --also-run-disabled-tests smoothness.sync_scroll.key_mobile_sites_smooth
Test Metric: frame_times/http___www.cnn.com_2012_10_03_politics_michelle-obama-debate_index.html
Relative Change: 3.52%
Score: 99.9

Buildbot stdio: http://build.chromium.org/p/tryserver.chromium.perf/builders/android_nexus7_perf_bisect/builds/3126
Job details: https://chromeperf.appspot.com/buildbucket_job_status/9005542052318718896


Not what you expected? We'll investigate and get back to you!
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5853108026998784

| 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!

Wont fix. A small regression on a specific page, that is offset by wins
elsewhere. Will watch UMA closely to make sure.