1725704 - Implement test to cover QueryOutputProtectionStatus logic

Status: RESOLVED FIXED

(Core :: Audio/Video: Playback, task, P1)

Description

[Bryce Seager van Dyk [:bryce] (he/him) - Not reading bugmail]

Once bug 1711912 lands and the clear key CDM has support for QueryOutputProtectionStatus we should implement a test to cover this and ensure Gecko is responding to such queries as expected.

Comment 1

[Bryce Seager van Dyk [:bryce] (he/him) - Not reading bugmail]

Attachment: Bug 1725704 - Add test to cover CDM protection query. r?alwu

This adds coverage via the clearkey CDM to ensure that the output protection
query is working as intended. These tests ensure that the output protection
machinery recognizes when browsers windows are being captured, and this is
reflected by the clear key CDM changing key status on a test key id.

Two cases are covered:

1. Media playback is started, then during media playback a screen capture is
   started and stopped. The test checks that we set restricted key status while
   capture is active, and stop doing so once the capture stops.
2. Start a screen capture then start media playback, then stop capture while
   playback is still active. This is similar to the first case, but the media
   should start in a restricted state, as capture is ongoing when playback starts.

Comment 2

[Cristina Cozmuta (:CrissCozmuta)]

https://hg.mozilla.org/mozilla-central/rev/3a9c1994be60