Stop crashing on invalid wallpaper thumbnail images.

We still won't be able to show a thumbnail, of course, but now instead of
crashing the picker we leave an empty box and write out a helpful Log.e such
as:

	09-21 15:11:45.624: ERROR/Launcher(1539): Error decoding thumbnail resId=2130837544 for wallpaper #14

(Related to http://b/2113687.)
1 file changed
tree: d10261a5d8a4f609b38e0939d47f019a663cef78
  1. res/
  2. src/
  3. Android.mk
  4. AndroidManifest.xml
  5. MODULE_LICENSE_APACHE2
  6. NOTICE