android: Pass Camera shared pointer to CameraProxy by const reference

The CameraProxy is constructed with a Camera instance passed through a
shared pointer. It forwards it to the CameraDevice constructor, which
takes a reference used for the sole purpose of making an internal copy
of the shared pointer. Both constructors can thus take a const reference
instead of a value or a mutable reference. This optimises the
constructors slightly.

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

src/android/camera_proxy.h

@@ -19,7 +19,7 @@ class ThreadRpc;
 class CameraProxy
 {
 public:
-	CameraProxy(unsigned int id, std::shared_ptr<libcamera::Camera> camera);
+	CameraProxy(unsigned int id, const std::shared_ptr<libcamera::Camera> &camera);
 	~CameraProxy();
 
 	int open(const hw_module_t *hardwareModule);