Merge Android R

Bug: 168057903
Merged-In: Ia2a3906818c66adc28c14047af395289306da9aa
Change-Id: I66dfbfc59576c5776855cae75638c5d74480c08a
tree: b62c1cc1ef9030e7d77c00877ab5583ec5115bf5
  1. res/
  2. src/
  3. Android.bp
  4. AndroidManifest.xml
  5. OWNERS
  6. PREUPLOAD.cfg