All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=855459

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e9f40352ed45bf338c3c32f6ec38b270530675adbba15ad6c073c899e3130f5a


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

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

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8943022112240448688

=== BISECT JOB RESULTS ===
Bisect was unable to run to completion

Please try rerunning the bisect.


If failures persist contact the team (see below) and report the error.


Bisect Details
  Configuration: webview-phone-perf-bisect
  Benchmark    : memory.top_10_mobile
  Metric       : memory:webview:all_processes:reported_by_chrome:gpu:effective_size_avg/background/after_https_m_facebook_com_rihanna
  Change       : 25600.00% | 4096.0 -> 1052672.0

Revision                                       Result              N
android-chrome@009b09f963                      4096.0 +- 0.0       6      good
android-chrome@009b09f963,chromium@568439      4096.0 +- 0.0       6      good
android-chrome@009b09f963,chromium@568524      4096.0 +- 0.0       6      good
android-chrome@6d7cb80987                      1052672 +- 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/8943022112240448688


For feedback, file a bug with component Speed>Bisection

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8942755310545428848

Downgrading P2s that haven't been modified in more than 6 months, which also do not have a component or owner.