GitLab

Adds an inline implementation of NeuralStylusPalmDetectionFilterModel,
with a few extra changes:

1. Updates the factory to add a Flag and appropriate instantiation of
NeuralStylusPalmDetectionFilter when that flag is turned on.

2. Update the unit test of the factory to appropriately test that the
NeuralStylusPalmDetectionFilter is correctly instantiated.

3. Update NeuralStylusPalmDetectionFilter with a few lint updates
suggested by git cl lint

4. Move 2 items from private to public in NeuralStylusPalmDetectionFilter .

Bug: 1009290
Change-Id: I35c5a5e2c61c436dd2eaaeba439245cc7cc9433a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1890376
Commit-Queue: Rob Schonberger <robsc@chromium.org>
Reviewed-by: Michael Spang <spang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#712835}