All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=727749

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDghqC4rAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg-vyN8QoM


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

android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8978151217091037584

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

Hi fsamuel@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 : fsamuel
  Commit : b520968f4ac40fb89ce25329134b388ca42cca12
  Date   : Thu May 25 03:10:42 2017
  Subject: cc::SurfaceDependencyTracker should not crash when a Display goes away

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : media.android.tough_video_cases
  Metric       : cpu_utilization/tulip2.m4a_browser
  Change       : 42.75% | 4.41038806078 -> 6.29602451552

Revision             Result                   N
chromium@474412      4.41039 +- 0.284586      6      good
chromium@474478      4.95815 +- 0.392932      6      good
chromium@474511      4.77246 +- 0.201913      6      good
chromium@474527      4.74601 +- 0.382598      6      good
chromium@474535      4.80166 +- 0.30985       6      good
chromium@474537      4.82686 +- 0.355689      6      good
chromium@474538      4.88369 +- 0.236163      6      good
chromium@474539      6.17353 +- 0.317644      6      bad       <--
chromium@474543      6.29602 +- 0.294367      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/8978151217091037584

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5827007646007296


| 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!