am a2a1ca42: Merge "DropBoxManager.Entry implements Closeable" into gingerbread

Merge commit 'a2a1ca42bc07af77a8a10b714517d006cb66c36a' into gingerbread-plus-aosp

* commit 'a2a1ca42bc07af77a8a10b714517d006cb66c36a':
  DropBoxManager.Entry implements Closeable