Allow headless to use GPU

[elalish]

Fixes #263

It seems reasonable to allow headless chrome to use the GPU if available, and on M1 macbooks it's the only thing that works now for WebGL since Chrome 109. I've verified this allows my karma tests to run again on my M1 macbook as long as I also specify the --use-angle=metal flag.

[barrtender]

I believe this test will fail with this change: https://github.com/karma-runner/karma-chrome-launcher/blob/master/test/jsflags.spec.js#L85

The flag seems to have been added from the original headless PR (6 years ago) and there's no specific note of it being load bearing so I don't see any reason for needing it.

[elalish]

Thanks, updated.

[elalish]

So, @barrtender do these test failures mean anything to you? I'm hoping this isn't related to my change...

[barrtender]

Did some investigation yesterday - I think it's just that the commit messages are in the wrong format. Can you rebase/squash the commits to get it in the standard format?

I suggest:
fix(Mac WebGL): Allow headless to use GPU

I think that would work.

[dollysingh3192]

Hey Guys,

Can we please merge it asap?

[pmvald]

@elalish We just need to re-format the commit messages to pass the commitlint test, then we'll merge it. I suggest we squash all these three commits into one with a message like "feat: allow headless to use GPU" For more info on formatting see this - you can also check previous commits.

[elalish]

Closing in favor of #266.

[elalish]

Also, there's a cool feature called "Squash and Merge" on Github to avoid this problem, though I suppose there's no getting around the picky commitlint.