Add messageId null check in persistIfRequired. am: b12b703017
am: b0b43d95d5

Change-Id: I92efd0f1a1fee5ffbcc76ce720c5b8c8471f23f4
tree: a175d19a67ecc3126636a1af0fb6efef97687e32
  1. res/
  2. src/
  3. Android.mk
  4. AndroidManifest.xml
  5. OWNERS
  6. proguard.flags