playlist/EmbeddedCue:: wrap CueParser in std::unique_ptr<>

src/playlist/plugins/EmbeddedCuePlaylistPlugin.cxx

@@ -35,6 +35,8 @@
 #include "fs/AllocatedPath.hxx"
 #include "util/ASCII.hxx"
 
+#include <memory>
+
 #include <string.h>
 
 class EmbeddedCuePlaylist final : public SongEnumerator {
@@ -56,17 +58,9 @@ public:
 	 */
 	char *next;
 
-	CueParser *parser;
+	std::unique_ptr<CueParser> parser;
 
 public:
-	EmbeddedCuePlaylist() noexcept
-		:parser(nullptr) {
-	}
-
-	~EmbeddedCuePlaylist() noexcept override {
-		delete parser;
-	}
-
 	std::unique_ptr<DetachedSong> NextSong() override;
 };
 
@@ -113,7 +107,7 @@ embcue_playlist_open_uri(const char *uri,
 	playlist->cuesheet = std::move(extract_cuesheet.cuesheet);
 
 	playlist->next = &playlist->cuesheet[0];
-	playlist->parser = new CueParser();
+	playlist->parser = std::make_unique<CueParser>();
 
 	return playlist;
 }