AW: add boundary interfaces for new classes used in callbacks
am: c0f2da484a

Change-Id: I3553441d4cb200713b25c9fb0985864ffc099796
tree: 26bd2529f08755452d53a01892a9679625c25e15
  1. BUILD.gn
  2. DEPS
  3. proguard.flags
  4. src/