Merge pi-dev-plus-aosp-without-vendor into stage-dr1-aosp-master

Bug: 111615259
Change-Id: I2b8ec82484f37334663c4879a2cf5b38ee92ce93
tree: a4b5504e2877a45d3d5d010a10c168761ee9af12
  1. camera2/
  2. common/
  3. framesequence/
  4. photoviewer/
  5. widget/
  6. CleanSpec.mk
  7. OWNERS