There are now 29 commits pending to roll, and it is still stuck.

What I know:

- I landed [A]: https://chromium-review.googlesource.com/934322
  Which caused some AndroidBrowserFinderTest's to fail on linux, win, and mac bots
  First failed roll [1]: https://chromium-review.googlesource.com/c/chromium/src/+/946114

- I did not notice this, so also landed [B]: https://chromium-review.googlesource.com/934822
  on top of [A] (they are dependent CLs).

- This morning I noticed the auto-roll being stuck due to my CL in [A],
  so I reverted [B]: https://chromium-review.googlesource.com/951605
  and then reverted [A]: https://chromium-review.googlesource.com/951606

- A new roll with both reverts is [2]: https://chromium-review.googlesource.com/c/chromium/src/+/951671
  But this roll is still failing on mac_chromium_rel_ng,
  e.g.: https://ci.chromium.org/buildbot/tryserver.chromium.mac/mac_chromium_rel_ng/666550

The failing tests are:

- content_shell_crash_test with "Could not find reference to CrashIntentionally in stack"
- webkit_layout_tests with "composited-with-hit-testing.html"

Both of these started failing ever since [1] and look like consistent failures, but they appear to be unrelated to my changes (also they still fail after both of my reverts).

Not sure what are next steps here? Who could investigate further?