1294430 - The control center misleadingly shows "Allowed Temporarily" when a subframe with persistent permissions uses a device

Status: NEW

(Firefox :: Site Permissions, defect, P3)

Description

[Florian Quèze [:florian]]

This is an edge case I didn't cover in bug 1206233.

Steps to reproduce:
1. Open a page using the camera from an https url. Eg. https://people.mozilla.org/~fqueze2/webrtc/
2. Get a camera sharing prompt, answer it with the "Always share" submenu item.
3. Open the control center, see the Camera item says "Allow".
4. Load data:text/html,<iframe src="https://people.mozilla.org/~fqueze2/webrtc/" height=300></iframe>
5. Click the "Camera" button.
6. Open the control center panel.

Actual result:
The Camera item says "Allowed Temporarily". This is misleading.

Expected result:
I'm not sure. Either we should somehow force the code to display "Allow" there when a subframe has persistent permission. Or for a better solution, we may want to wait for UX to figure out how to present permissions from subframes of different origins (see bug 1225156).