Take advantage of the new Pass() machinery on scoped_ptr{,_malloc}.

media/filters/ffmpeg_demuxer_factory.h

Index: media/filters/ffmpeg_demuxer_factory.h
diff --git a/media/filters/ffmpeg_demuxer_factory.h b/media/filters/ffmpeg_demuxer_factory.h
index 8921531fd5b88f0a6b43ac53e71a71daff4c1f90..efb96786ff94f5b51c633eb30253cfb83cfd3730 100644
--- a/media/filters/ffmpeg_demuxer_factory.h
+++ b/media/filters/ffmpeg_demuxer_factory.h
@@ -17,14 +17,13 @@ namespace media {
 
 class MEDIA_EXPORT FFmpegDemuxerFactory : public DemuxerFactory {
  public:
-  // Takes ownership of |data_source_factory|, but not of |loop|.
-  FFmpegDemuxerFactory(DataSourceFactory* data_source_factory,
+  FFmpegDemuxerFactory(scoped_ptr<DataSourceFactory> data_source_factory,
                        MessageLoop* loop);
   virtual ~FFmpegDemuxerFactory();
 
   // DemuxerFactory methods.
   virtual void Build(const std::string& url, const BuildCallback& cb) OVERRIDE;
-  virtual DemuxerFactory* Clone() const OVERRIDE;
+  virtual scoped_ptr<DemuxerFactory> Clone() const OVERRIDE;
 
  private:
   scoped_ptr<DataSourceFactory> data_source_factory_;