All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=773710

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=5273519827f7fe6e59642066aa9bd8f33f439d80ec6a4398d27870e6e694b82b


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

android-nexus7v2

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8966017450486171840

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

Suspected Commit
  Author : David Bokan
  Commit : 771bc4ee1d609083dd81daa0ee78229b49dfa270
  Date   : Thu Oct 05 18:39:46 2017
  Subject: Use viewport coords in gpuBenchmarking gestures

Bisect Details
  Configuration: android_nexus7_perf_bisect
  Benchmark    : smoothness.gpu_rasterization.top_25_smooth
  Metric       : frame_times/https___mail.google.com_mail_
  Change       : 31.53% | 18.4882528591 -> 24.3173219982

Revision             Result                   N
chromium@506749      18.4883 +- 1.05013       6      good
chromium@506781      18.3264 +- 1.62011       6      good
chromium@506797      18.4336 +- 1.4414        6      good
chromium@506801      18.4961 +- 0.963306      6      good
chromium@506803      18.1636 +- 1.44748       6      good
chromium@506804      24.3793 +- 0.847888      6      bad       <--
chromium@506805      25.17 +- 1.94875         6      bad
chromium@506813      24.3568 +- 1.15505       6      bad
chromium@506876      24.3173 +- 1.10884       6      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=android-chromium --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=https...mail.google.com.mail. smoothness.gpu_rasterization.top_25_smooth

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8966017450486171840


For feedback, file a bug with component Speed>Bisection