Migrate PackageManagerHelper to MainThreadInitializedObject
- This is in preparation for other things that can be loaded with
PMH initialization and prevents duplicate temporary helpers from
loading this many times.
- Most calls in PMH can use the app context, but one call requires
starting activities/showing toasts so that one needs to take the
context and can be made static instead.
Bug: 323112914
Test: atest NexusLauncherTests
Change-Id: Id11c780955880cf49c022cbf2744c41e1b696355
13 files changed