Merge "Provides APIs for partial screenshot diff." into tm-dev
tree: 882aba2fa0c5d2e2ee34cae462f8f37e3d73f1a9
  1. build/
  2. docs/
  3. emu_test/
  4. libraries/
  5. scripts/
  6. tests/
  7. utils/
  8. PREUPLOAD.cfg