Pointer Event: Suppress compatibility mouse events on drag

When a pointerdown is canceled, a mouse drag shouldn't fire any compatibility mouse events.

Drag mouse within Target0 & release.
Drag mouse within Target1 & release.
Click Done.
Target0
Target1
Done
The following pointer types were detected: mouse.

The following events were logged: mousedown@target1, mousemove@target1, mouseup@target1.


PASS Suppress compat mouse events on drag
PASS primary pointer pointerdown@target0
PASS primary pointer pointerdown@target1
PASS Event log