"Bring all tabs to this window" unexpectedly brings PWAs into the window as tabs

[mdemoss]

Description

"Bring all tabs to this window" unexpectedly brings PWAs (portable web applications) into the window as tabs. This can't be easily undone except by re-launching the PWA.

Steps to reproduce

1. Install a web application as a PWA
2. Launch PWA in its own window
3. Choose "Bring all tabs to this window" from the tab context window in another window.

Actual result

PWAs move to the window as though they were tabs.

Expected result

PWAs are expected to behave more like independent applications and shouldn't be pulled in as tabs in this way.

Reproduces how often

Easily reproduced

Brave version (brave://version info)

1.68.134 Chromium: 127.0.6533.88 (Official Build) (64-bit)

Channel information

• release (stable)
• beta
• nightly

Reproducibility

• with Brave Shields disabled
• with Brave Rewards disabled
• in the latest version of Chrome

Miscellaneous information

Behavior seems the same on "real" PWAs and on ordinary web pages installed as PWAs.

[kjozwiak]

The above requires 1.69.137 or higher for 1.69.x verification 👍

[stephendonner]

Verification PASSED using

Brave | 1.69.137 Chromium: 127.0.6533.100 (Official Build) beta (64-bit)
-- | --
Revision | 40b6ccbd1eb76c8f575e83de8ad81c4349d3f32a
OS | Windows 10 Version 22H2 (Build 19045.4717)

Steps:

1. installed 1.69.137
2. launched Brave
3. loaded pokedex.org
4. installed the PWA from the URL-bar's icon
5. opened a couple windows (not tabs)
6. context-clicked on a window's tab
7. chose Bring all tabs to this window

Confirmed the Pokedex PWA window/tab wasn't folded into the above set of tabs

example	example	example	example

[JoshuaMacklin]

The previous unintended behavior maybe a quick way to implement a Firefox Multi-Account Container type feature.
#34
#6346