All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=814034

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=0a7a9391dc27d08b15a6f73675f6fb315a102ff9a94ea5e6ff6c0e840d4fb154


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

chromium-rel-mac12

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/16eba68f840000

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/16eba68f840000

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/1122b8f0440000

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/169e120c440000

📍 Found a significant difference after 1 commit.
https://pinpoint-dot-chromeperf.appspot.com/job/169e120c440000

mac: Don't pause for frames with no frame sink by ccameron@chromium.org
https://chromium.googlesource.com/chromium/src/+/5a89487894c5c141e32bd716d72ce4e0f63800d4

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

📍 Found significant differences after each of 2 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/1122b8f0440000

Remove Document::ImportContainerNodeChildren(). by tkent@chromium.org
https://chromium.googlesource.com/chromium/src/+/d4d982d2ba9b1b46911335a2803da17d8f554db7

Disable FileManagerFileWatcherTest.WatchLocalFile in unit_tests. by fukino@chromium.org
https://chromium.googlesource.com/chromium/src/+/4b1a0b12690040435027f97e51a543963250bb55

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

My change only disabled a test. It can't affect the performance.
tkent@, can your change affect the performance?

My Cl might have performance progression, but I don't think it causes regression.

Looking at the graph, it seems the regression was already recovered.

WontFix-ing since the graphs recovered.

+tdresser for cpu_time and eqt metrics that produce strange bisect results.