All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=792004

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=cdeb061d35df6098042183e2b93e0c767e1b1893ec239823f2bd288328e3dafc


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

android-nexus5X
android-nexus7v2
android-one

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8961039771206747552

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

Bisect Details
  Configuration: android_one_perf_bisect
  Benchmark    : loading.mobile
  Metric       : timeToFirstContentfulPaint_avg/cold/DevOpera

Revision             Result                  N
chromium@519977      854.936 +- 1298.04      21      good
chromium@520129      865.225 +- 788.964      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=DevOpera loading.mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8961039771206747552


For feedback, file a bug with component Speed>Bisection

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8961026635578860880

Kicked new bisect

=== BISECT JOB RESULTS ===
Bisect failed for unknown reasons

Please contact the team (see below) and report the error.


Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : loading.mobile
  Metric       : cpuTimeToFirstMeaningfulPaint_avg/cold/DevOpera


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=DevOpera loading.mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8961026635578860880


For feedback, file a bug with component Speed>Bisection

Filed a bug to look into bisecting the /DevOpera tests

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8960926858514180896

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

Suspected Commit
  Author : Dave Tapuska
  Commit : ff7f1749d10b1fce53591cae122639cf17848e53
  Date   : Wed Nov 29 04:13:44 2017
  Subject: Enable mojo input messages on all platforms other than Android webview.

Bisect Details
  Configuration: android_nexus5X_perf_bisect
  Benchmark    : loading.mobile
  Metric       : timeToFirstContentfulPaint_avg/cold/DevOpera
  Change       : 24.62% | 235.893166667 -> 293.981333333

Revision             Result                  N
chromium@519888      235.893 +- 38.7495      6      good
chromium@519990      236.134 +- 52.0731      6      good
chromium@519993      216.004 +- 29.7747      6      good
chromium@519995      235.721 +- 48.3573      6      good
chromium@519996      286.894 +- 6.16141      6      bad       <--
chromium@519997      287.794 +- 8.69722      6      bad
chromium@520003      290.156 +- 18.2402      6      bad
chromium@520016      282.931 +- 6.62368      6      bad
chromium@520041      284.677 +- 11.8057      6      bad
chromium@520091      285.871 +- 12.7882      6      bad
chromium@520294      293.981 +- 17.1453      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=DevOpera loading.mobile

More information on addressing performance regressions:
  http://g.co/ChromePerformanceRegressions

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8960926858514180896


For feedback, file a bug with component Speed>Bisection