Implement Drop for WpIBinder, to avoid memory leak.

    }

}

impl Drop for WpIBinder {

    fn drop(&mut self) {

        unsafe {

            // Safety: WpIBinder always holds a valid `AIBinder_Weak` pointer, so we

            // know this pointer is safe to pass to `AIBinder_Weak_delete` here.

            sys::AIBinder_Weak_delete(self.0);

        }

    }

}

/// Rust wrapper around DeathRecipient objects.

#[repr(C)]

pub struct DeathRecipient {