1999136 - Headless should still allow GPU process

Status: ASSIGNED

(Core :: Graphics, task)

Description

[Andrew Osmond [:aosmond] (he/him)]

We block the GPU process while headless:
https://searchfox.org/firefox-main/rev/45e3c8634099e0f57fa0e7660dba85580a5dd8e7/gfx/thebes/gfxPlatform.cpp#2505

We already block acceleration which we should continue blocking:
https://searchfox.org/firefox-main/rev/45e3c8634099e0f57fa0e7660dba85580a5dd8e7/gfx/thebes/gfxPlatform.cpp#2547

Let's stop blocking the GPU process for headless assuming the tests are green. We should be fuzzing with the GPU process, etc that currently turn on headless:
https://searchfox.org/firefox-main/rev/45e3c8634099e0f57fa0e7660dba85580a5dd8e7/toolkit/xre/nsAppRunner.cpp#4071

Comment 1

[Andrew Osmond [:aosmond] (he/him)]

Attachment: Bug 1999136 - Allow the GPU process when running Firefox headless.

Comment 2

[BugBot [:suhaib / :marco]]

There is an r+ patch which didn't land and no activity in this bug for 2 weeks.
:aosmond, could you have a look please?
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Comment 3

[Andrew Osmond [:aosmond] (he/him)]

This won't work if we try to land it, there is more work to be done around creating a working CompositorWidgetParent object.