All graphs for this bug:
  https://chromeperf.appspot.com/group_report?bug_id=813956

(For debugging:) Original alerts at time of bug-filing:
  https://chromeperf.appspot.com/group_report?sid=1c9e64740bd409f93287231a592d5b2f02db8b1df5d08bc9bc1f73854578e082


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

android-webview-nexus6
chromium-rel-mac11-air
chromium-rel-win7-gpu-intel
chromium-rel-win8-dual
linux-release

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/14f1bef7840000

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/12e072e2440000

📍 Pinpoint job started.
https://pinpoint-dot-chromeperf.appspot.com/job/12eca532440000

📍 Couldn't reproduce a difference.
https://pinpoint-dot-chromeperf.appspot.com/job/12e072e2440000

📍 Found significant differences after each of 5 commits.
https://pinpoint-dot-chromeperf.appspot.com/job/12eca532440000

Renderer observer of frame submission by jonross@chromium.org
https://chromium.googlesource.com/chromium/src/+/a2ff4f82109df55045dee9f54985a98054f86dc4

Mac SelectFileDialog TLC by tapted@chromium.org
https://chromium.googlesource.com/chromium/src/+/4de65ba04a18745d4963ca386a3e3f2b1735135a

Revert "Mac SelectFileDialog TLC" by thomasanderson@chromium.org
https://chromium.googlesource.com/chromium/src/+/374de998ab969466b15844bca93580a2332056ef

[SPv175] Enable SlimmingPaintV175 by default by wangxianzhu@chromium.org
https://chromium.googlesource.com/chromium/src/+/0a9a5c311a1d3a298f952e495510bd6fe3faa2f6

Omit the parent LayoutView's scroll offset from FrameRect by szager@chromium.org
https://chromium.googlesource.com/chromium/src/+/cf91f7965c29e2bc93e81f79cef5d77481b00e6e

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

-me (since both my CL and its revert are there..)

There was a regression caused by my CL in #6, but I've since landed https://chromium-review.googlesource.com/c/chromium/src/+/934626 which should remove this impact in prod

The chart in Pinpoint shows three jumps that are about the same size. +tdresser, the benchmark owner: are all of these jumps significant?

Renderer observer of frame submission by jonross@chromium.org

[SPv175] Enable SlimmingPaintV175 by default by wangxianzhu@chromium.org

Omit the parent LayoutView's scroll offset from FrameRect by szager@chromium.org

I suspect we'll be fine accepting the SPV175 change, but we should make sure they're aware of the regression.

Jon has addressed the impact of his change, just leaving Stefan's change, which I think is worth following up on.

SPv175 has been disabled in M66 and ToT, so there should be no remaining regressions caused by SPv175.

Yep, this is mine; I have a patch in progress.

 Issue 814154  has been merged into this issue.

Is this regression recovered now?