All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=842610

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=4747e2498de07eba52b0eba0901ec56da872c1259635f50cd2c910c3b771f213


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

health-plan-webview-phone
perf-go-phone-1024
perf-go-webview-phone

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8946562679389258064

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

Suspected Commit
  Author : jgruber
  Commit : e0c3f6d6ca005185e537fb85bbe841fe5dae5240
  Date   : Tue May 08 11:21:37 2018
  Subject: Disable embedded builtins

Bisect Details
  Configuration: webview-phone-perf-bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:webview:all_processes:reported_by_chrome:v8:allocated_objects_size_avg/foreground/https_m_facebook_com_rihanna
  Change       : 43.01% | 803624.0 -> 1149240.0

Revision                                                     Result                 N
android-chrome@be902aa047                                    803624 +- 0.0          6      good
android-chrome@be902aa047,chromium@556849                    803648 +- 4.38178      6      good
android-chrome@be902aa047,chromium@556890                    803649 +- 4.13118      6      good
android-chrome@be902aa047,chromium@556893                    803651 +- 3.26599      6      good
android-chrome@be902aa047,chromium@556894                    803649 +- 4.13118      6      good
android-chrome@be902aa047,chromium@556894,v8@855850eb7f      803652 +- 0.0          6      good
android-chrome@be902aa047,chromium@556894,v8@e0c3f6d6ca      1149708 +- 0.0         6      bad       <--
android-chrome@be902aa047,chromium@556894,v8@c34562803e      1149708 +- 0.0         6      bad
android-chrome@be902aa047,chromium@556894,v8@9f5018c9b0      1149708 +- 0.0         6      bad
android-chrome@be902aa047,chromium@556894,v8@61af2762ef      1149240 +- 0.0         6      bad
android-chrome@be902aa047,chromium@556895                    1149240 +- 0.0         6      bad
android-chrome@be902aa047,chromium@556901                    1149240 +- 0.0         6      bad
android-chrome@be902aa047,chromium@556911                    1149240 +- 0.0         6      bad
android-chrome@1390428f76                                    1149240 +- 0.0         6      bad
android-chrome@41db54dacb                                    1149240 +- 0.0         6      bad

Please refer to the following doc on diagnosing memory regressions:
  https://chromium.googlesource.com/chromium/src/+/master/docs/memory-infra/memory_benchmarks.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 --story-filter=https.m.facebook.com.rihanna memory.top_10_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8946562679389258064


For feedback, file a bug with component Speed>Bisection