tree 6f5702ada27f1cbe10078eb30f225c3bd56c500a
parent 0d76da8dc5f2717e91aadee778cdd4bd5c7ee115
author Andrew de los Reyes <adlr@chromium.org> 1330476733 -0800
committer Andrew de los Reyes <adlr@chromium.org> 1330543577 -0800

ImmediateInterpreter: Fix TapRecord T5R2 situation detection.

If three fingers on a T5R2 pad, and one is removd, we often see a
frame with no fingers, but with positive touch count, then a frame
with 2 fingers and touch count of 2. Previously, this latter frame
would look like two added fingers, but we can tell, from the previous
frame, that that is not the case, and we are instead only having
fingers removed, not added.

BUG=chromium-os:25718
TEST=unittest; replayed problematic log and saw fix; tested on device.

Change-Id: Id580663e7304b8d95a00db5e7014a02487400cc9