All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=727623

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDght7uuwoM


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

android-nexus5

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8978177663079255088

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : media.android.tough_video_cases_tbmv2
  Metric       : cpu_time_percentage_avg/video.html?src_tulip2.mp3_type_audio

Revision             Result                     N
chromium@474577      0.235892 +- 0.0167816      21      good
chromium@474635      0.236657 +- 0.0129136      21      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 --story-filter=video.html.src.tulip2.mp3.type.audio media.android.tough_video_cases_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978177663079255088

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4891823882895360


| 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!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8978170777886306176

=== BISECT JOB RESULTS ===
NO Perf regression found

Bisect Details
  Configuration: android_nexus5_perf_bisect
  Benchmark    : media.android.tough_video_cases_tbmv2
  Metric       : cpu_time_percentage_avg/video.html?src_tulip2.mp3_type_audio

Revision             Result                     N
chromium@474577      0.23289 +- 0.0199812       21      good
chromium@474635      0.233858 +- 0.0200035      21      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 --story-filter=video.html.src.tulip2.mp3.type.audio media.android.tough_video_cases_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978170777886306176

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4891823882895360


| 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!

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8978089682335197296

another bisect with wider range

=== 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_nexus5_perf_bisect
  Benchmark    : media.android.tough_video_cases_tbmv2
  Metric       : cpu_time_percentage_avg/video.html?src_tulip2.mp3_type_audio
  Change       : 6.31% | 0.219781315045 -> 0.233655629844

Revision             Result                      N
chromium@474332      0.219781 +- 0.0148239       6       good
chromium@474484      0.221967 +- 0.0119297       6       good
chromium@474522      0.222485 +- 0.0105986       9       good
chromium@474532      0.224076 +- 0.0137714       14      good
chromium@474537      0.224869 +- 0.00457156      9       good
chromium@474538      0.224543 +- 0.0117202       9       good
chromium@474539      0.231299 +- 0.0116231       9       bad       <--
chromium@474541      0.232318 +- 0.0175033       9       bad
chromium@474560      0.233228 +- 0.00679479      6       bad
chromium@474635      0.233656 +- 0.00790011      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 --story-filter=video.html.src.tulip2.mp3.type.audio media.android.tough_video_cases_tbmv2

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8978089682335197296

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5277605227397120


| 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!