Root Cause: The lifecycle for AccessibilityShortcutPreferenceFragmentTest did not be called correctly. Solution: * Call onAttach() before onCreate() to some config, e.g. FeatureFactory. * Use ShadowFragment.class that we usually do in accessibility tests. Fix: 200906425 Fix: 201020915 Test: atest AccessibilityShortcutPreferenceFragmentTest Change-Id: I3391c0a4a2c7c361a44c7d282b1d5d3e75a28a39