All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=757495

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=effed9a413f3b1487764999331bdbf03e7ab8c8cd787181ccdc097d566ac5a12


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

chromium-rel-mac-retina
chromium-rel-mac11-air
chromium-rel-win10
chromium-rel-win7-gpu-intel
chromium-rel-win7-gpu-nvidia

Started bisect job https://chromeperf.appspot.com/buildbucket_job_status/8970632042215184064

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

Hi charliea@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 : Charlie Andrews
  Commit : 7fab27426a0c1ac0925b9b3f25cbbfaf515439a9
  Date   : Fri Aug 18 02:56:08 2017
  Subject: Revert "Improve suspending logic."

Bisect Details
  Configuration: winx64_10_perf_bisect
  Benchmark    : memory.long_running_idle_gmail_background_tbmv2
  Metric       : memory:chrome:renderer_processes:reported_by_chrome:v8:heap:allocated_objects_size_max/https___mail.google.com_mail_
  Change       : 3023.61% | 2974256.0 -> 92904110.6667

Revision             Result                    N
chromium@495408      2974256 +- 0.0            6      good
chromium@495432      2974256 +- 0.0            6      good
chromium@495438      2974256 +- 0.0            6      good
chromium@495441      2974256 +- 0.0            6      good
chromium@495442      82618227 +- 29697036      6      bad       <--
chromium@495443      75093339 +- 8582284       6      bad
chromium@495444      78109272 +- 20722966      6      bad
chromium@495456      89577088 +- 36439070      6      bad
chromium@495504      92904111 +- 31790344      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=https...mail.google.com.mail. memory.long_running_idle_gmail_background_tbmv2

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

Debug information about this bisect:
  https://chromeperf.appspot.com/buildbucket_job_status/8970632042215184064


For feedback, file a bug with component Speed>Bisection

Marking this as WontFix. My revert was necessary because the code in question caused an infinite loop in several media cases.

 Issue 759050  has been merged into this issue.

 Issue 759700  has been merged into this issue.

 Issue 759699  has been merged into this issue.