All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=788397

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=458115576db833e8491d866350debc461077713038b8e9bdf5a79be6b483469d


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

android-webview-nexus6

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8962038330488764944

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

Suspected Commit
  Author : Fredrik Söderquist
  Commit : e9bd34c60d38b0b5bcee52a6cd475b9124974aab
  Date   : Tue Nov 21 21:09:18 2017
  Subject: Use approximate stroke bounding boxes for SVG shapes

Bisect Details
  Configuration: android_webview_nexus6_aosp_perf_bisect
  Benchmark    : thread_times.key_silk_cases
  Metric       : thread_GPU_cpu_time_per_frame/http___wiltzius.github.io_shape-shifter_
  Change       : 12.34% | 3.13196491911 -> 3.51832386894

Revision             Result                    N
chromium@518366      3.13196 +- 0.182995       6      good
chromium@518388      3.10343 +- 0.0823192      6      good
chromium@518391      3.10234 +- 0.0622053      6      good
chromium@518392      3.48099 +- 0.196334       6      bad       <--
chromium@518393      3.51589 +- 0.161448       6      bad
chromium@518394      3.48377 +- 0.0946763      6      bad
chromium@518399      3.46335 +- 0.154913       6      bad
chromium@518409      3.48433 +- 0.157181       6      bad
chromium@518452      3.51832 +- 0.144672       6      bad

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=http...wiltzius.github.io.shape.shifter. thread_times.key_silk_cases

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8962038330488764944


For feedback, file a bug with component Speed>Bisection