ImmediateInterpreter: Simplify fling generation, allow nearly stationary fingers.

I agreed to fix these nits previously in
https://gerrit.chromium.org/gerrit/#change,19272

This CL also removes the stationary fingers detection, as that was
preventing small flings, and removing the code doesn't seem to have
(immediately obvious) regressions.

BUG=chromium-os:28934
TEST=unittest; tested on device

Change-Id: I60d03a3d07a92b6c9782202df22871f90d447c77
Reviewed-on: https://gerrit.chromium.org/gerrit/19603
Commit-Ready: Andrew de los Reyes <adlr@chromium.org>
Reviewed-by: Andrew de los Reyes <adlr@chromium.org>
Tested-by: Andrew de los Reyes <adlr@chromium.org>
3 files changed
tree: 541216995507890481cfed7ac3b7ad7901b99fe2
  1. include/
  2. keyboard_touchpad_helper/
  3. src/
  4. tools/
  5. .gitignore
  6. LICENSE
  7. Makefile