Merge Android R

Bug: 168057903
Merged-In: Idee0d7e25684262c53f897679768e753000fffab
Change-Id: Icbc6f79b8c1e6c9eb5dc7058957642961c03ecad
tree: 73f9f17cd06b20900d30b446fab57811306bae63
  1. res/
  2. src/
  3. Android.bp
  4. AndroidManifest.xml