[automerger skipped] Merge "camera2 ndk: Allow nullptr for ACameraCaptureSession_captureCallbacks.onClosed." into qt-qpr1-dev am: 9ed54cdf4d am: 826e5c01ed am: 1f338c87f8 -s ours
am skip reason: Change-Id I8d365b434c257e949496d9495d0fa31a18a2e068 with SHA-1 9da975d887 is in history

Change-Id: I4cdc1c5b947a782a972f134ec4a8220b281422a9