1. Added API for badging an arbitrary drawable at a given location.
2. Updated the icon and previewImage deprecation as they are no longer
returning a badged drawable. The methods to load the icon and the
preview are now just making it easier for a developer to get the
drawables.
3. Fixed a bug in AppWidgetServiceImpl leading to a crash when a user
is removed.
4. Fixed a bug in AppWidgetHost which was unnecessarily caching its
package name and having code paths where the cached value was not
populated when calling into the system.
bug:14991269
Change-Id: I50d011a6597d88814715d5ec04ee67815e8ce0bd
c71c42fdb2