am a4682ed7: Merge "Minor SharedPreference clean-up." into gingerbread

Merge commit 'a4682ed7547e895605d102ab17fc5c134b4ab38f' into gingerbread-plus-aosp

* commit 'a4682ed7547e895605d102ab17fc5c134b4ab38f':
  Minor SharedPreference clean-up.