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/libcamera/camera.cpp

@@ -596,7 +596,7 @@ const std::string &Camera::id() const
 
 Camera::Camera(PipelineHandler *pipe, const std::string &id,
 	       const std::set<Stream *> &streams)
-	: Extensible(new Private(pipe, id, streams))
+	: Extensible(std::make_unique<Private>(pipe, id, streams))
 {
 }