Merge Android R (rvc-dev-plus-aosp-without-vendor@6692709)

Bug: 166295507
Merged-In: I30a2a3f5af794eaeaea2facee92e8a1dc196a249
Change-Id: I6a250ac5f12e25e8ba2647836cc85312f53cade2
tree: 637d93c8c6439990697bb2f6724b8edbd26e022b
  1. doc/
  2. include/
  3. src/
  4. tests/
  5. tools/
  6. Android.bp
  7. OWNERS