All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=736272

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgzqio0wgM


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

android-one

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976006458571388592

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8976006451913713632

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

Hi dtapuska@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 : Dave Tapuska
  Commit : 4cef659a8009c5cb4f5708336ae37654d23653b3
  Date   : Wed Jun 21 15:16:45 2017
  Subject: Enable scrollTopLeftInterop by default.

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : thread_times.simple_mobile_sites
  Metric       : thread_raster_cpu_time_per_frame/thread_raster_cpu_time_per_frame
  Change       : 181.77% | 1.13792328389 -> 3.20628471763

Revision             Result                    N
chromium@481162      1.13792 +- 0.103006       6      good
chromium@481189      1.43585 +- 0.822091       6      good
chromium@481202      1.26899 +- 0.694108       5      good
chromium@481206      1.14445 +- 0.0280497      6      good
chromium@481207      1.15484 +- 0.0397196      6      good
chromium@481208      3.24605 +- 0.438329       6      bad       <--
chromium@481209      3.60326 +- 0.970508       6      bad
chromium@481215      3.20628 +- 0.106803       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 thread_times.simple_mobile_sites

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976006451913713632

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5325038057684992


| 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!

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

Suspected Commit
  Author : Dave Tapuska
  Commit : 4cef659a8009c5cb4f5708336ae37654d23653b3
  Date   : Wed Jun 21 15:16:45 2017
  Subject: Enable scrollTopLeftInterop by default.

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : thread_times.simple_mobile_sites
  Metric       : thread_raster_cpu_time_per_frame/thread_raster_cpu_time_per_frame
  Change       : 175.18% | 1.11392461448 -> 3.06531289294

Revision             Result                    N
chromium@481162      1.11392 +- 0.0196522      6      good
chromium@481189      1.11612 +- 0.0362004      6      good
chromium@481202      1.10759 +- 0.125939       6      good
chromium@481206      1.11063 +- 0.065558       6      good
chromium@481207      1.35673 +- 0.862452       6      good
chromium@481208      3.34355 +- 0.970331       6      bad       <--
chromium@481209      3.38808 +- 0.543608       6      bad
chromium@481215      3.06531 +- 0.370308       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 thread_times.simple_mobile_sites

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8976006458571388592

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5449898796777472


| 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!

 Issue 736277  has been merged into this issue.

 Issue 736277  has been merged into this issue.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2906e9a3ebf242d7c4723377cedeb5557de949bc

commit 2906e9a3ebf242d7c4723377cedeb5557de949bc
Author: Dave Tapuska <dtapuska@chromium.org>
Date: Mon Jun 26 14:03:21 2017

Remove http://www.apple.com/mac from simple_mobile_sites

The page is behaving weird with the ScrollLeftTopInterOp.
An analysis of the WPR snapshot shows it is using scrollLeft/scrollTop
in a different fashion than the current version. The increased
rasterization on low end Android hardware and decreased raster times
on mid range Android hardware indicate increased software
rasterization is causing the regression.

It isn't clear what the cause from the javascript is. There appears to be
no visual changes when running the tests. There are exceptions thrown
when the page is loaded in Nexus5X devtools console.

I believe this page needs to be re-recorded.

BUG= 736272 

Change-Id: I8c9b9e2bb723acb6686c9b2ad82bb2a0878fda04
Reviewed-on: https://chromium-review.googlesource.com/546297
Reviewed-by: Ned Nguyen <nednguyen@google.com>
Commit-Queue: Dave Tapuska <dtapuska@chromium.org>
Cr-Commit-Position: refs/heads/master@{#482261}
[modify] https://crrev.com/2906e9a3ebf242d7c4723377cedeb5557de949bc/tools/perf/page_sets/simple_mobile_sites.py