Fix: 195961101
Test: make RunSettingsRoboTests
Test: manual (enroll via settings and verify preferences enabled after enrolling)
Change-Id: Ie50cd862a42c96eb95f2156a33f34748b2b8b50c
The preferences that are related to biometric settings should only be
searchable if the device supports the multiple biometric auth. However
we can see these preferences still can be searched even the device
doesn't support the feature, which is caused by that there's no
guardence. So the availiability of the preferences need to be updated to
prevent revealing unsupported preference from Settings search.
Fixes: 187167774
Test: manual test
1) Navigate to Settings search on a device without face auth
2) Search for face
3) See if there's something about face unlock
Change-Id: I6f120e8d9002a1e8f0be9361fdbea193776e4d7d
There will be multiple biometrics authentications existing at the same
time, so we added a new page for multiple biometrics to control
biometrics settings.
Bug: 183449119
Test: manual test
Change-Id: I359082caf771e07dfd5b24973cb8a3cf372c1b30
