Merge "camera2 ndk: Allow nullptr for...

        dev->unlockDevice();

    }

    // Fire onClosed callback

    if (mUserSessionCallback.onClosed != nullptr) {

        (*mUserSessionCallback.onClosed)(mUserSessionCallback.context, this);

    }

    ALOGV("~ACameraCaptureSession: %p is deleted", this);

}

        return true;

    }

    static void onDeviceDisconnected(void* /*obj*/, ACameraDevice* /*device*/) {}

    static void onDeviceError(void* /*obj*/, ACameraDevice* /*device*/, int /*errorCode*/) {}

    static void onSessionClosed(void* /*obj*/, ACameraCaptureSession* /*session*/) {}

    static void onSessionReady(void* /*obj*/, ACameraCaptureSession* /*session*/) {}

    static void onSessionActive(void* /*obj*/, ACameraCaptureSession* /*session*/) {}

   private:

    ACameraDevice_StateCallbacks mDeviceCb{this, onDeviceDisconnected,

                                           onDeviceError};

    ACameraCaptureSession_stateCallbacks mSessionCb{

        this, onSessionClosed, onSessionReady, onSessionActive};

    ACameraDevice_StateCallbacks mDeviceCb{this, nullptr, nullptr};

    ACameraCaptureSession_stateCallbacks mSessionCb{ this, nullptr, nullptr, nullptr};

    native_handle_t* mImgReaderAnw = nullptr;  // not owned by us.