Properly support mouse input on Chrome OS

[johnheroy]

It would be pretty cool to see the Android Moonlight app properly support mouse input from Chrome OS devices that are capable of Android apps. It sounds like OTG mice on plain ol' Android devices works fine but for some reason I'm relegated to touch-emulated mouse input on Chrome OS (i.e., have to click and drag to move the mouse on host PC).

https://developer.android.com/topic/arc/index.html#keyboard

[stale]

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