replace OVERRIDE and FINAL with override and final in media/

media/filters/ffmpeg_video_decoder.h

Index: media/filters/ffmpeg_video_decoder.h
diff --git a/media/filters/ffmpeg_video_decoder.h b/media/filters/ffmpeg_video_decoder.h
index 909a578a06c0324e1fa6d9fe13c3210072df8b85..76b6af5ac238b18bfa4502c4d81c209f60d6f769 100644
--- a/media/filters/ffmpeg_video_decoder.h
+++ b/media/filters/ffmpeg_video_decoder.h
@@ -36,14 +36,14 @@ class MEDIA_EXPORT FFmpegVideoDecoder : public VideoDecoder {
   void set_decode_nalus(bool decode_nalus) { decode_nalus_ = decode_nalus; }
 
   // VideoDecoder implementation.
-  virtual std::string GetDisplayName() const OVERRIDE;
+  virtual std::string GetDisplayName() const override;
   virtual void Initialize(const VideoDecoderConfig& config,
                           bool low_delay,
                           const PipelineStatusCB& status_cb,
-                          const OutputCB& output_cb) OVERRIDE;
+                          const OutputCB& output_cb) override;
   virtual void Decode(const scoped_refptr<DecoderBuffer>& buffer,
-                      const DecodeCB& decode_cb) OVERRIDE;
-  virtual void Reset(const base::Closure& closure) OVERRIDE;
+                      const DecodeCB& decode_cb) override;
+  virtual void Reset(const base::Closure& closure) override;
 
   // Callback called from within FFmpeg to allocate a buffer based on
   // the dimensions of |codec_context|. See AVCodecContext.get_buffer2