libcamera: base: extensible: Pass private pointer as unique_ptr<>

The Extensible constructor takes a pointer to a Private instance, whose
lifetime it then manages. Make this explicit in the API by passing the
pointer as a std::unique_ptr<Private>.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>

src/android/camera_buffer.h

@@ -32,7 +32,7 @@ public:
 
 #define PUBLIC_CAMERA_BUFFER_IMPLEMENTATION				\
 CameraBuffer::CameraBuffer(buffer_handle_t camera3Buffer, int flags)	\
-	: Extensible(new Private(this, camera3Buffer, flags))		\
+	: Extensible(std::make_unique<Private>(this, camera3Buffer, flags)) \
 {									\
 }									\
 CameraBuffer::~CameraBuffer()						\

src/android/camera_hal_config.cpp

@@ -341,7 +341,7 @@ int CameraHalConfig::Private::parseConfigFile(FILE *fh,
 }
 
 CameraHalConfig::CameraHalConfig()
-	: Extensible(new Private()), exists_(false), valid_(false)
+	: Extensible(std::make_unique<Private>()), exists_(false), valid_(false)
 {
 	parseConfigurationFile();
 }