[cssom-view] screenX/Y are being redefined as double, should movementX/Y as well?

[scheib]

CSSOM View Module ED extends MouseEvent's screenX to a double.

Pointer Lock REC extended MouseEvent by adding readonly attribute long movementX.

Should CSSOM View Module also extend movementX to double? Or, should this be updated only in Pointer Lock 2? (This was initially raised in w3c/pointerlock#24)

[NavidZ]

@EiraGe @dtapuska FYI
Any path for this issue? We are eager to modify this in Chrome as there are issues concerning this matter. I suggest modifying it in PointerLock spec if there are no objections. @scheib are you okay with this?

[scheib]

CSSOM View Module should include movementX/Y. If a patch is refused, then fall back to PointerLock.

Why? Specifications that amend and change behavior of other specifications adds complexity to the web platform. Ideally upstream specifications are updated to be current whenever possible. Making a change if needed in CSSOM View Module is unfortunate, but doing it twice in CSSOM & in Pointer Lock is even worse.

[NavidZ]

CSSOM View Module should include movementX/Y. If a patch is refused, then fall back to PointerLock.

Does it currently include the integer version of movementX/Ys? I wanted to make sure since I haven't found any.