All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=691612

Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?keys=agxzfmNocm9tZXBlcmZyFAsSB0Fub21hbHkYgIDgmL7I4wkM


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

win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8987755215349214768

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

Suspected Commit
  Author : japhet
  Commit : ffefd4173f178d76449fc51f5dc22bfd7e120e03
  Date   : Thu Feb 09 22:25:56 2017
  Subject: Actually handle the Vary header in blink, rather than punting on sight.

Bisect Details
  Configuration: winx64_high_dpi_perf_bisect
  Benchmark    : system_health.common_desktop
  Metric       : timeToFirstContentfulPaint_avg/browse_media/browse_media_pinterest
  Change       : 34.79% | 718.739952388 -> 968.763880911

Revision             Result                  N
chromium@449409      718.74 +- 176.83        14      good
chromium@449426      700.183 +- 168.412      9       good
chromium@449434      703.18 +- 199.109       9       good
chromium@449436      642.182 +- 210.157      6       good
chromium@449437      741.981 +- 165.463      6       good
chromium@449438      1170.78 +- 296.079      6       bad       <--
chromium@449443      1011.34 +- 469.389      6       bad
chromium@449475      1025.36 +- 971.987      14      bad
chromium@449542      968.764 +- 829.232      14      bad

To Run This Test
  src/tools/perf/run_benchmark -v --browser=release_x64 --output-format=chartjson --upload-results --pageset-repeat=1 --also-run-disabled-tests --story-filter=browse.media.pinterest system_health.common_desktop

Debug Info
  https://chromeperf.appspot.com/buildbucket_job_status/8987755215349214768

Is this bisect wrong?
  https://chromeperf.appspot.com/bad_bisect?try_job_id=4831375745613824


| O O | Visit http://www.chromium.org/developers/speed-infra/perf-bug-faq
|  X  | for more information addressing perf regression bugs. For feedback,
| / \ | file a bug with component Speed>Bisection.  Thank you!