All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=700557

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg1JDpjgoM


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

android-nexus5

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8985467882802157888

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

Hi pdr@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 : pdr
  Commit : 53707d796144fb0c60f081e4477b31a7adab4e6d
  Date   : Thu Mar 09 19:30:09 2017
  Subject: Revert of Remove indirection: setup scrollbar scroll layers in the scrollbar constructor (patchset #5 id:80001 of https://codereview.chromium.org/2728253002/ )

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : media.android.tough_video_cases
  Metric       : vm_shared_dirty_delta/tulip2.ogg_gpu
  Change       : 121.88% | 21.3333333333 -> 47.3333333333

Revision             Result                  N
chromium@455818      21.3333 +- 7.30297      6      good
chromium@455827      20.0 +- 9.79796         5      good
chromium@455828      52.6667 +- 3.65148      6      bad       <--
chromium@455829      51.3333 +- 3.65148      6      bad
chromium@455831      51.3333 +- 3.65148      6      bad
chromium@455835      52.0 +- 5.65685         6      bad
chromium@455852      46.6667 +- 7.30297      6      bad
chromium@455885      47.3333 +- 6.733        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 media.android.tough_video_cases

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8985467882802157888

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5036079649914880


| 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!

This was a revert which returned things back to normal. There were large perf regressions that required that we roll out the original. I don't plan to revisit that patch at this time.

 Issue 701820  has been merged into this issue.