Standardize usage of virtual/override/final in media/

media/formats/webm/webm_tracks_parser.h

 // Copyright 2014 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 MEDIA_FORMATS_WEBM_WEBM_TRACKS_PARSER_H_
 #define MEDIA_FORMATS_WEBM_WEBM_TRACKS_PARSER_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 10 matching lines @@
 #include "media/formats/webm/webm_content_encodings_client.h"
 #include "media/formats/webm/webm_parser.h"
 #include "media/formats/webm/webm_video_client.h"
 
 namespace media {
 
 // Parser for WebM Tracks element.
 class MEDIA_EXPORT WebMTracksParser : public WebMParserClient {
  public:
   explicit WebMTracksParser(const LogCB& log_cb, bool ignore_text_tracks);
-  virtual ~WebMTracksParser();
+  ~WebMTracksParser() override;
 
   // Parses a WebM Tracks element in |buf|.
   //
   // Returns -1 if the parse fails.
   // Returns 0 if more data is needed.
   // Returns the number of bytes parsed on success.
   int Parse(const uint8* buf, int size);
 
   int64 audio_track_num() const { return audio_track_num_; }
   int64 video_track_num() const { return video_track_num_; }
@@ skipping 26 matching lines @@
   }
 
   typedef std::map<int, TextTrackConfig> TextTracks;
 
   const TextTracks& text_tracks() const {
     return text_tracks_;
   }
 
  private:
   // WebMParserClient implementation.
-  virtual WebMParserClient* OnListStart(int id) override;
-  virtual bool OnListEnd(int id) override;
-  virtual bool OnUInt(int id, int64 val) override;
-  virtual bool OnFloat(int id, double val) override;
-  virtual bool OnBinary(int id, const uint8* data, int size) override;
-  virtual bool OnString(int id, const std::string& str) override;
+  WebMParserClient* OnListStart(int id) override;
+  bool OnListEnd(int id) override;
+  bool OnUInt(int id, int64 val) override;
+  bool OnFloat(int id, double val) override;
+  bool OnBinary(int id, const uint8* data, int size) override;
+  bool OnString(int id, const std::string& str) override;
 
   int64 track_type_;
   int64 track_num_;
   std::string track_name_;
   std::string track_language_;
   std::string codec_id_;
   std::vector<uint8> codec_private_;
   int64 seek_preroll_;
   int64 codec_delay_;
   int64 default_duration_;
@@ skipping 15 matching lines @@
 
   WebMVideoClient video_client_;
   VideoDecoderConfig video_decoder_config_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMTracksParser);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FORMATS_WEBM_WEBM_TRACKS_PARSER_H_