All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=711864

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwuqXsAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggsPSogsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggv7W6ggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggrW56AoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwpjj9QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg_L-dmAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggq7rpgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggo7omwgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggvuT_QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggrGSgggM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggv_QxwgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggrGS_AsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwqil_AoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwtibpgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwuitrwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwtzY4QoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggpXKhAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwqq_uwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggu7SvwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg_NveqAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwpyz7gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwuzipAsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggpXKhAgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggpOMugoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg_NveqAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggpup6QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwq6YrgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggqPV8AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggvHvqAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwqystgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwpyz7goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggtWb9goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggvSnwwgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggrH2kwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwtyWqQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggvHzsQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgguPdowoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggrXkvgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggorhlQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggrGnhgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg_LnMlAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggrH2kwoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggtb-ywsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggrDl7QkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggoemuwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggrH2kwgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggt_s_goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggpaE4AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggrGS_AoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggof8qgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggpGDtwkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwoyckQsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggvGBvgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwoyckQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwqj05QgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggpmNyQkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggr2b4wsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwvKP_AkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggo78-goM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgguj_8gkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwuzdgwgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwtjRqgkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg_IbnlAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggvmn3QsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggvbgxAkM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggr3ohAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDg_NeWrQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggsu_yQgM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggv_QhwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggqXTiwsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwtjRqgoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggvbgxAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggrGnhgsM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDggv_vsAoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwqqGvQoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwtjGswoM,agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgwvKP_AoM


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

android-nexus5
android-nexus5X
android-nexus7v2
android-webview-nexus5X
android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8982283122637189680

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

Hi dfalcantara@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 : dfalcantara
  Commit : 8ef9faffba78738c37df77a160fea80ee5f604af
  Date   : Thu Apr 13 23:30:05 2017
  Subject: 🔍 Update how shared preferences are handled by the widget

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : media.android.tough_video_cases
  Metric       : cpu_utilization/video.html?src_crowd720_vp9.webm

Revision             Result                   N
chromium@464562      0.0 +- 0.0               6      good
chromium@464604      0.0 +- 0.0               6      good
chromium@464605      11.0563 +- 0.158416      6      bad       <--
chromium@464606      11.4641 +- 0.670077      6      bad
chromium@464607      11.6482 +- 0.447814      6      bad
chromium@464610      11.2928 +- 0.299865      6      bad
chromium@464615      11.1649 +- 0.253884      6      bad
chromium@464625      11.3032 +- 0.372701      6      bad
chromium@464645      11.428 +- 0.139247       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.crowd720.vp9.webm media.android.tough_video_cases

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8982283122637189680

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=5880966385500160


| 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!

Wouldn't be surprised if this was related to the other regression that was introduced earlier for 711040.  Best thing to do for both is probably just move the initialization of the widget to ChromeActivity, or something; there's too many things that ChromeBrowserInitializer is used by.

Actually: crouleau: what's going on with that graph?  The whole thing looks hosed.

Assigning back to crouleau temporarily for an answer to Comment 5; please assign back afterward if there's something I should be doing here.  The graph looks like it just fixed itself and returned to where it was before a gigantic gap appeared.

 Issue 712619  has been merged into this issue.

Agreed with dfalcatara@'s Comment 6: The graph was simply fixing itself. Not sure how that could have been caused by your changelist.

 Issue 712620  has been merged into this issue.

 Issue 712616  has been merged into this issue.

 Issue 712618  has been merged into this issue.