Add base class for preference controllers.

Preference controllers will handle the business logic of preference settings. Some classes referenced in the documentation will be added in immediate follow-ups. This is a manageable piece of a larger full feature impl.

Bug: 112931076

Test: end to end test in full feature change, make RunCarSettingsRoboTests
Change-Id: Ibb42c65efa7444af6ba805bd1a7ab4230350f244
4 files changed
tree: 8aff3eda94b0c3ec395597e14c143c67251d24b3
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml
  6. PREUPLOAD.cfg