All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=776754

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=c2c8e38613b1de05efa2ae254b3197ef3cdd832c724389a00425a3b9d2c0d5db


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

android-webview-nexus5X
android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8965206430445285360

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

Suspected Commit
  Author : Tommy Steimel
  Commit : 07624e078141bbbe3612245d0ae57c617601c15f
  Date   : Tue Oct 17 04:06:09 2017
  Subject: Show sound content setting in Page Info when tab is audible on Android

Bisect Details
  Configuration: android_webview_arm64_aosp_perf_bisect
  Benchmark    : system_health.memory_mobile
  Metric       : memory:webview:all_processes:reported_by_os:system_memory:java_heap:proportional_resident_size_avg/browse_media/browse_media_youtube
  Change       : 8.06% | 6812672.0 -> 7361536.0

Revision             Result                  N
chromium@509254      6812672 +- 63981.6      6      good
chromium@509270      6838613 +- 60937.3      6      good
chromium@509274      6818133 +- 106286       6      good
chromium@509276      6797653 +- 73879.5      6      good
chromium@509277      6801067 +- 35903.3      6      good
chromium@509278      7371776 +- 42071.3      6      bad       <--
chromium@509285      7369387 +- 43194.5      6      bad
chromium@509316      7361536 +- 114980       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=browse.media.youtube system_health.memory_mobile

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8965206430445285360


For feedback, file a bug with component Speed>Bisection