Merge 09a0d9f3fb8288f9dc4232d0880b5449c4ba0072 on remote branch

Change-Id: I40ee06f6b7855025b8e8eadb0d03e2c9b6bd93c0
tree: 4b6cf4536b16d1f154dcf3f0578a1668ac712f53
  1. nn/
  2. .clang-format
  3. CleanSpec.mk
  4. CPPLINT.cfg
  5. OWNERS
  6. PREUPLOAD.cfg