Merge Android R

Bug: 168057903
Merged-In: I1ae4134b93e99fc56cc0935e0e78df197e0d9487
Change-Id: Id386426fcb199ada5a43cdff8fe47a3a40fbd47f
tree: e67f720984bacb763fa054c650e0163bf695e3e3
  1. com/
  2. Android.bp
  3. import-maven-artifacts.sh