Prevent full sized icons from being stored when low-res icons are requested.

- When LauncherModel loads for the first time, the full set of widget package
  icons are loaded, which loads and stores full resolution icons even if low-res
  icons are requested.  This CL ensures that if we query for package icons, the
  low res icon is returned if it is requested, only loading the high-res icons
  when the user goes into the widgets tray.

Bug: 22797443
Change-Id: I45cd23c302c5e654ba7e0306a4b07b2fbeb70d2b
1 file changed