All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=759099

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=fc9f1a7eee8cc493e0fd00b6a420e7683fac45801ea95cf8d206a0479cef45b5


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

win-high-dpi

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970267464734832512

=== Auto-CCing suspected CL author estade@chromium.org ===

Hi estade@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : Evan Stade
  Commit : 38e4aee64eccdaeff1b9b8010b574d047693bbbe
  Date   : Wed Aug 23 17:06:18 2017
  Subject: Re-land ad2949ac9cb3919d1f3866f1 - Count a WebContents as "no longer

Bisect Details
  Configuration: winx64_high_dpi_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:all_processes:reported_by_chrome:malloc:effective_size_avg/video.html?src_crowd2160.mp4
  Change       : 0.80% | 40151728.6667 -> 40473317.1667

Revision             Result                  N
chromium@496675      40151729 +- 299137      6      good
chromium@496700      40215442 +- 474642      9      good
chromium@496713      40217559 +- 439258      9      good
chromium@496716      40213391 +- 627218      9      good
chromium@496717      40183663 +- 518775      6      good
chromium@496718      40650188 +- 193840      6      bad       <--
chromium@496719      40610632 +- 533820      9      bad
chromium@496725      40645710 +- 523922      6      bad
chromium@496774      40473317 +- 214852      6      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=video.html.src.crowd2160.mp4 media.tough_video_cases_tbmv2

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970267464734832512


For feedback, file a bug with component Speed>Bisection

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8968276818047289376

=== Auto-CCing suspected CL author estade@chromium.org ===

Hi estade@chromium.org, the bisect results pointed to your CL, please take a look at the
results.


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

Suspected Commit
  Author : Evan Stade
  Commit : 38e4aee64eccdaeff1b9b8010b574d047693bbbe
  Date   : Wed Aug 23 17:06:18 2017
  Subject: Re-land ad2949ac9cb3919d1f3866f1 - Count a WebContents as "no longer

Bisect Details
  Configuration: winx64_high_dpi_perf_bisect
  Benchmark    : media.tough_video_cases_tbmv2
  Metric       : memory:chrome:all_processes:reported_by_chrome:malloc:effective_size_avg/video.html?src_tulip2.ogg_type_audio_seek
  Change       : 3.25% | 13473715.5 -> 13910944.1667

Revision             Result                   N
chromium@496675      13473716 +- 59459.9      6      good
chromium@496700      13464140 +- 57848.1      6      good
chromium@496713      13498986 +- 68406.6      6      good
chromium@496716      13477807 +- 57415.1      6      good
chromium@496717      13494691 +- 101766       6      good
chromium@496718      13906534 +- 86469.4      6      bad       <--
chromium@496719      13921384 +- 62107.8      6      bad
chromium@496725      13918162 +- 101727       6      bad
chromium@496774      13910944 +- 120595       6      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=video.html.src.tulip2.ogg.type.audio.seek media.tough_video_cases_tbmv2

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8968276818047289376


For feedback, file a bug with component Speed>Bisection