docs: Update chrome-flags-for-tools.md

[Saafine]

Updated chrome-flags-for-tools.md with flags to replace camera.

[google-cla]

Thanks for your pull request. It looks like this may be your first contribution to a Google open source project (if not, look below for help). Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA).

📝 Please visit https://cla.developers.google.com/ to sign.

Once you've signed (or fixed any issues), please reply here with @googlebot I signed it! and we'll verify it.

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• It's possible we don't have your GitHub username or you're using a different email address on your commit. Check your existing CLA data and verify that your email is set on your git commits.

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ℹ️ Googlers: Go here for more info.

[Saafine]

@googlebot I signed it!

[patrickhulce]

Great additions thanks @Saafine!