All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=877595

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=e74a5876aec3874c01f028bd5f1fc499ea2e59b4766e7a39cd70862149d6ded4


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

mac-10_12_laptop_low_end-perf
mac-10_13_laptop_high_end-perf

system_health.common_desktop - Benchmark documentation link:
  https://bit.ly/system-health-benchmarks

blink_perf.owp_storage - Benchmark documentation link:
  https://bit.ly/blink-perf-benchmarks

loading.desktop - Benchmark documentation link:
  https://bit.ly/loading-benchmarks

system_health.memory_desktop - Benchmark documentation link:
  https://bit.ly/system-health-benchmarks

rendering.desktop - Benchmark documentation link:
  https://bit.ly/rendering-benchmarks

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/14b543d9640000

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/14b543d9640000

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/146be4f9640000

📍 Found significant differences after each of 6 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/146be4f9640000

[UserTiming] Correct measure where start is undefined by maxlg@chromium.org
https://chromium.googlesource.com/chromium/src/+/3152c6f70f331e4502b3146c6e69fa3ddea8c21d
917.1 → 981.6 (+64.51)

[Base] Use background mode for ThreadPriority::BACKGROUND threads (behind feature). by fdoray@chromium.org
https://chromium.googlesource.com/chromium/src/+/c7196c14b362446bd55e39b0a1da7d3f8783b61b
981.6 → 924.8 (-56.81)

Turn on OOP Raster on mac bots by enne@chromium.org
https://chromium.googlesource.com/chromium/src/+/ee35f329c8e615505326a3b4df9ae4b7764037ae
973.7 → 1131 (+156.9)

[WebXR] Remove [SecureContext] extended attribute by codeimpl@gmail.com
https://chromium.googlesource.com/chromium/src/+/ae376588a7f3735891160342bd3567cf616a4b0a
1131 → 1092 (-39.04)

Fix some implicit 64-bit to 32-bit conversions in Mojo. by wfh@chromium.org
https://chromium.googlesource.com/chromium/src/+/3ea79d13595a6cbf39507d4366a2f7f31daea4d3
1094 → 1134 (+39.89)

Roll src/third_party/skia e6ab998bc2e6..4a0ba280b94c (7 commits) by skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com
https://chromium.googlesource.com/chromium/src/+/a831d3fdf38324175cc7f6af9fc74dcb7e2cc97d
1118 → 1263 (+145)

Assigning to sheriff fmalita@chromium.org because "Roll src/third_party/skia e6ab998bc2e6..4a0ba280b94c (7 commits)" is a roll.

Understanding performance regressions:
  http://g.co/ChromePerformanceRegressions

Welp, looks like the graphs have long-since recovered.