Merge "Add @GuardedBy annotation to PersistentDataBlockService#mIsWritable." into lmp-mr1-dev am: 63a27d773b am: 1422a6074d am: a1d59972ad am: f027831c6b am: 5c74a1e9bb am: 1d84f619bf am: 0e2e913b04 am: b07ddf3814 am: 596e3a9d1a
am: 821fdbd3ff

Change-Id: Ic735b56728a9e8f8df25c22ed33135890e8b6f08