New issue by timsofteng on void-packages repository

https://github.com/void-linux/void-packages/issues/33179

Description:
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### System

* xuname:  
  *Void 5.13.19_1 x86_64 GenuineIntel notuptodate rrFFF*
* package:  
  *chromium-94.0.4606.61_1*

### Expected behavior
When I launch chromium with specific flags I should have ability to share my screen.
It works in firefox right now on my system.

### Actual behavior
When launch chromium with needed flags I get this error in terminal:
`[30861:30861:0929/144013.555951:ERROR:base_capturer_pipewire.cc(896)] Failed to create a proxy for the screen cast portal: Unknown or unsupported transport “disabled” for address “disabled:”`
![image](https://user-images.githubusercontent.com/51912173/135261553-d3e557a3-ccad-4568-8ed5-e4ed7db16621.png)


### Steps to reproduce the behavior
1. Install wayland, swaywm and wlr portal.
2. Open chromium with next flags:
`chromium --enable-features=UseOzonePlatform,WebRTCPipeWireCapturer --ozone-platform=wayland`
3. Open site to test screensharing (e.g. [webrtc](https://www.webrtc-experiment.com/Pluginfree-Screen-Sharing/#7152534809036794) ).

### Note
If I open firefox at the same time and share my screen then screensharing starts to work in chromium as well. But when I close firefox then screensharing in chromium stops to work.