Add tests to ensure InputDispatcher uses the coorect coordinate space

InputDispatcher works in the display space, so its coordinate system
is relative to the display panel. Windows get events in the window space,
and get raw coordinates in the logical display space.

Bug: 179274888
Test: atest inputflinger_tests
Change-Id: I47f3d2751d8659b229605353596d777460367515
1 file changed