Extract track information from iTunes library xml file.

chrome/browser/media_galleries/fileapi/itunes_library_parser.h

Index: chrome/browser/media_galleries/fileapi/itunes_library_parser.h
diff --git a/chrome/browser/media_galleries/fileapi/itunes_library_parser.h b/chrome/browser/media_galleries/fileapi/itunes_library_parser.h
new file mode 100644
index 0000000000000000000000000000000000000000..1da155363fffd375c443e38b30e9b10e1fe38eb5
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+++ b/chrome/browser/media_galleries/fileapi/itunes_library_parser.h
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+// Copyright (c) 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_ITUNES_LIBRARY_PARSER_H_
+#define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_ITUNES_LIBRARY_PARSER_H_
+
+#include <map>
+#include <set>
+
+#include "base/files/file_path.h"
+
+namespace itunes {
+
+class ITunesLibraryParser {
+ public:
+  struct Track {
+    Track(uint64 id, const base::FilePath& location);
+    bool operator<(const Track& other) const;
+
+    uint64 id;
+    base::FilePath location;
+  };
+
+  typedef std::set<Track> Album;
+  typedef std::map<std::string /*album name*/, Album> Albums;
+  typedef std::map<std::string /*artist name*/, Albums> Library;
+
+  ITunesLibraryParser();
+  ~ITunesLibraryParser();
+
+  // Returns true if at least one track was found. Malformed track entries
+  // are silently ignored.
+  bool Parse(const std::string& xml);
+
+  const Library& library() { return library_; }
+
+ private:
+  Library library_;
+
+  DISALLOW_COPY_AND_ASSIGN(ITunesLibraryParser);
+};
+
+}  // namespace itunes
+
+#endif  // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_ITUNES_LIBRARY_PARSER_H_