Add recent apps in app & notification
- Introduce a RecentAppsPreferenceControler, which queries
UsageStatsManager and displays a list of recently used apps.
- Add a control flag for this feature, intially set to false.
- Make ManageApplications a static pref item instead of dynamic one.
This makes the RecentAppController easier to control "See all"
preference, which is backed by ManageApplications.
- Also adjust app_items.xml layout to make app item UI consistent with
preference item.
Change-Id: I0b9e1784faed32b3055ebf96ef98b6a5e422de50
Fix:
33265548
Test: robotests