CameraExtensions: Align 'onNextImageAvailable' doc with implementation

The current 'onNextImageAvailable' implementation expects extensions to
decrement the incoming image reference reference count when they are no longer
needed.

Bug: 283038375
Test: Camera CTS
Change-Id: I4fe48cd1f1f05cf60a870b3603b491819b646a88
3 files changed
tree: da0417ebd1cd17c2ec214fb4e75bfb8c80d5b089
  1. camera2/
  2. common/
  3. framesequence/
  4. photoviewer/
  5. widget/
  6. CleanSpec.mk
  7. OWNERS