Standardize usage of virtual/override/final in chrome/browser/media_galleries

chrome/browser/media_galleries/fileapi/itunes_data_provider.h

 // Copyright 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_DATA_PROVIDER_H_
 #define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_ITUNES_DATA_PROVIDER_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 14 matching lines @@
 // methods to access it.  When the file changes, it will update the data.
 // It is not thread safe, but can be run on any thread with IO access.
 class ITunesDataProvider : public iapps::IAppsDataProvider {
  public:
   typedef std::string ArtistName;
   typedef std::string AlbumName;
   typedef std::string TrackName;
   typedef std::map<TrackName, base::FilePath> Album;
 
   explicit ITunesDataProvider(const base::FilePath& library_path);
-  virtual ~ITunesDataProvider();
+  ~ITunesDataProvider() override;
 
   // Get the platform path for the auto-add directory.
   virtual const base::FilePath& auto_add_path() const;
 
   // Returns true if |artist| exists in the library.
   bool KnownArtist(const ArtistName& artist) const;
 
   // Returns true if |artist| has an album by the name |album| in the library.
   bool KnownAlbum(const ArtistName& artist, const AlbumName& album) const;
 
@@ skipping 12 matching lines @@
   // Get the tracks for the |album| by |artist|.
   Album GetAlbum(const ArtistName& artist, const AlbumName& album) const;
 
  private:
   friend class TestITunesDataProvider;
 
   typedef std::map<AlbumName, Album> Artist;
   typedef std::map<ArtistName, Artist> Library;
 
   // Parse the library xml file.
-  virtual void DoParseLibrary(const base::FilePath& library_path,
-                              const ReadyCallback& ready_callback) override;
+  void DoParseLibrary(const base::FilePath& library_path,
+                      const ReadyCallback& ready_callback) override;
 
   // Called when the utility process finishes parsing the library XML file.
   void OnLibraryParsed(const ReadyCallback& ready_callback,
                        bool result,
                        const parser::Library& library);
 
   // Path to the auto-add directory.
   const base::FilePath auto_add_path_;
 
   // The parsed and uniquified data.
   Library library_;
 
   scoped_refptr<iapps::SafeIAppsLibraryParser> xml_parser_;
 
   // Hides parent class member, but it is private, and there's no way to get a
   // WeakPtr<Derived> from a WeakPtr<Base> without using SupportsWeakPtr.
   base::WeakPtrFactory<ITunesDataProvider> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ITunesDataProvider);
 };
 
 }  // namespace itunes
 
 #endif  // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_ITUNES_DATA_PROVIDER_H_