All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=781258

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e7b9195645a4990f2bceea0a4efd661ad17c2eef7120de093d95b5040ec73da1


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

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

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8963934209969190928

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

Suspected Commit
  Author : Koji Ishii
  Commit : 811fe6a25ddee5065812bf50733de963e58832cb
  Date   : Tue Oct 31 14:34:37 2017
  Subject: Add CrashKey to LazyLineBreakIterator on Android

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : blink_perf.dom
  Metric       : addRange/addRange

Revision             Result                  N
chromium@512769      2398.1 +- 46.7759       6      good
chromium@512815      2369.39 +- 28.7999      6      good
chromium@512821      2381.95 +- 41.3132      6      good
chromium@512824      2395.33 +- 16.5146      6      good
chromium@512825      3572.01 +- 43.3109      6      bad       <--
chromium@512826      3544.14 +- 54.6225      6      bad
chromium@512827      3556.89 +- 70.927       6      bad
chromium@512838      3527.22 +- 43.8504      6      bad
chromium@512860      3413.06 +- 38.0899      6      bad

Please refer to the following doc on diagnosing blink_perf regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/speed/benchmark_harnesses/blink_perf.md

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-webview --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests blink_perf.dom

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8963934209969190928


For feedback, file a bug with component Speed>Bisection