Bug: 285231003 Test: manual - on affected pages Change-Id: I83283fcc4b241596a8f0cdf5299417bce2810d0c
1. Integrate with trackpad settings dummy APIs. 2. Integrate with trackpad gesture APIs. Bug: 247080509 Test: manual, make RunSettingsRoboTests ROBOTEST_FILTER="com.android.settings.inputmethod.*" Change-Id: Ic180e28896bb0a5aa71eb0eb63d3824bd342ff45
1. basic trackpad settings 2. trackpad gestures settgins 3. use feature flag to control gesture settings page. Bug: 247080509 Test: local test Change-Id: Ia7184eeb7670e5d807cb553929679972e54d8c92