Vertical tab strip doesn't expand on Windows / And tabs are wider than it should be

[sangwoo108]

Description

Original report: #24717 (comment)
Reporter: @Emi-TheDhamphirInLoveUnderTheFrozenStar

Steps to Reproduce

In Windows - 1.52.5 Chromium: 112.0.5615.49 (Official Build) nightly (64-bit).

This is what happens when you attach/re-attach tabs from another window. The issue happens on both collapsed (which I usually use) and float mode.

As you can see, it displays some of the title of the tab,

Actual result:

Reattaching should expand the vertical tab strip

reference: screen recording in brave/brave-core#17690

Expected result:

Reproduces how often:

Brave version (brave://version info)

Version/Channel Information:

• Can you reproduce this issue with the current release?
• Can you reproduce this issue with the beta channel?
• Can you reproduce this issue with the nightly channel?

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields?
• Does the issue resolve itself when disabling Brave Rewards?
• Is the issue reproducible on the latest version of Chrome?

Miscellaneous Information:

[sangwoo108]

@MadhaviSeelam Could you help me with finding out steps-to-reproduce for this? I think I've seen this before but not sure how it could be reproduced.

---

[Update] I think I found it. Thanks

[MadhaviSeelam]

Verification PASSED using

Brave | 1.52.87 Chromium: 113.0.5672.77 (Official Build) beta (64-bit)
-- | --
Revision | c4236862955e005c2187105415ac4a2ecf86dff1-refs/branch-heads/5672_62@{#3}
OS | Windows 11 Version 22H2 (Build 22621.1555)

1. Installed 1.52.87
2. launched Brave
3. opened few tabs
4. right clicked on a tab to open context menu
5. selected Use vertical tabs
6. clicked Minimize tabs button to enable Float on mouseover mode
7. pressed down a tab before the vertical tab strip is expanded before releasing the mouse
8. drag a tab to another window and drop

Confirmed tabs are as wide as vertical tab panel

Confirmed when dragging a tab into another window and drop, the tab strip stayed open if mouse is over tab strip.

example	example
	!