Broken tab rearrangement on Linux

[intrnl]

Description

Tab rearrangement through mouse is broken on latest Brave Nightly.

Steps to Reproduce

1. Open up Brave.
2. Open multiple tabs, it can be anything.
3. Try to rearrange the tabs by dragging them.

Actual result:

Tab rearrangement is completely impossible, the tab will always split into a new window.

screenrecord-2021-12-10_16.12.50.mp4

Expected result:

You should be able to rearrange tabs.

Reproduces how often:

Easily reproducible.

Brave version (brave://version info)

Brave: 1.35.20 Chromium: 97.0.4692.36 (Official Build) nightly (64-bit)
Revision: 747e0a0f19c13ca6ee136200f5b097448ae4892f-refs/branch-heads/4692@{#607}
OS: Linux

Version/Channel Information:

• Can you reproduce this issue with the current release? Not tested.
• Can you reproduce this issue with the beta channel? Not tested.
• Can you reproduce this issue with the nightly channel? Yes.

This should only happen on Nightly currently as it's on Chrome 97, which has the faulty behavior.

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? No.
• Does the issue resolve itself when disabling Brave Rewards? No.
• Is the issue reproducible on the latest version of Chrome? Reproducible on Chrome Beta 97 and Dev 98.

Miscellaneous Information:

I thought it would be appropriate to file the issue here as well so people are aware of it and don't file another.

KDE Plasma 5.23.4, X11, Arch Linux 5.15.7-lqx1-1-lqx

[intrnl]

Unfortunately, Chrome 97 has landed into stable, and there hasn't been any news whether the issue would be fixed soon.

ref: https://bugs.chromium.org/p/chromium/issues/detail?id=1279532
caused by: https://bugs.chromium.org/p/chromium/issues/detail?id=1263023

[ipha]

Upstream fixed this in 98+. Is it possible to cherry-pick the patches?

https://chromium-review.googlesource.com/c/chromium/src/+/3355376
https://chromium-review.googlesource.com/c/chromium/src/+/3355470

[bsclifton]

Thanks for the report, @intrnl

I'm going to close this as duplicate of #20386 - you can follow that issue for updates 😄