Re: [mediacapture-screen-share] The user agent should be allowed to change sources after getDisplayMedia() resolves (#81)

> The application cannot use [displaySurface](https://w3c.github.io/mediacapture-screen-share/#dom-mediatracksettings-displaysurface) and [logicalSurface](https://w3c.github.io/mediacapture-screen-share/#dom-mediatracksettings-logicalsurface) constraints to influence what is shared, only to retrieve information after user selection. Note clear to me that this info is useful though.

Practical use of [displaySurface](https://w3c.github.io/mediacapture-screen-share/#dom-mediatracksettings-displaysurface) - I know developers who use video screen-capture as a mechanism for taking a screenshot of the current tab. If the user shares anything but a tab, they can use that information to bail. It would be even more useful if they could also recognize current-tab/other-tab, but that's a different issue; the existing field provides benefit to them.

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I'll add a PR for removing "MUST NOT change."

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Received on Thursday, 27 May 2021 13:02:40 UTC