Shimeng (Simon) Wang 1e07da3651 Use rounded interger to represent the last touch point.
This prevents loss of delta calculation accurracy when dragging, which
was done in float and converted to integer.

issue: 3366067
Change-Id: Ia121a6ef4619c9abfb1f76a01db3272d41d02b81
2011-01-19 13:19:56 -08:00
..
2011-01-18 11:19:19 -08:00
2011-01-18 09:12:51 -08:00