Having consistent import order will reduce chance of merge
conflict between internal and external master
Test: rebuild
Change-Id: I0b1a170967ddcce7f388603fd521f6ed1eeba30b
- Build a controller to generate/manage a list of preferences.
- Move some logics to the controller and add tests.
Test: manual
Test: make RunSettingsRoboTests -j
atest UniquePreferenceTest SettingsGatewayTest
Change-Id: Ia3d885cb8917c7d5498b87818e24b938f0d95dbb