Merge Android R

Bug: 168057903
Merged-In: I23245c41193902c90a8fe44ec44ce91d76cdf294
Change-Id: I68f2219780e9da4d1c3586ed5fef5b053d21d5be
tree: 41ec9c449271550f5908b7d34d2b359c924baab1
  1. res/
  2. src/
  3. tests/
  4. Android.bp
  5. AndroidManifest.xml
  6. NOTICE
  7. OWNERS
  8. proguard.flags