This reverts commit a2f63f1886.
Reason for revert: It breaks chromium integration tests https://ci.chromium.org/ui/p/v8/builders/ci/V8%20Blink%20Linux/22574/overview
Original change's description:
> [gc][static-roots] Don't access markbits on R/O pages
>
> Markbits on read only pages are initialized BLACK and never change. For
> any practical purposes they are unused.
>
> This CL prevents any access to the markbits of these pages. This is a
> precursor to removing them entirely from the page to make room for
> static roots.
>
> Bug: v8:13466
> Change-Id: I61d3f6d9bbca750d0f34475859b34ff44f7fec1e
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4212397
> Reviewed-by: Dominik Inführ <dinfuehr@chromium.org>
> Auto-Submit: Olivier Flückiger <olivf@chromium.org>
> Commit-Queue: Olivier Flückiger <olivf@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#85665}
Bug: v8:13466
Change-Id: Icda4be38da984fdefd40301238c361a86f912141
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4225673
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Auto-Submit: Ilya Rezvov <irezvov@chromium.org>
Owners-Override: Ilya Rezvov <irezvov@chromium.org>
Commit-Queue: Ilya Rezvov <irezvov@chromium.org>
Cr-Commit-Position: refs/heads/main@{#85695}
a37302d8f7