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

media/filters/chunk_demuxer_factory.h

Index: media/filters/chunk_demuxer_factory.h
diff --git a/media/filters/chunk_demuxer_factory.h b/media/filters/chunk_demuxer_factory.h
index 2cad89790557ad9ee8ae0dfcb93912e808e780d1..bee27dc4e18737090ae545e29caf8127c7b7ebb7 100644
--- a/media/filters/chunk_demuxer_factory.h
+++ b/media/filters/chunk_demuxer_factory.h
@@ -22,14 +22,14 @@ class ChunkDemuxerClient;
 // ChunkDemuxer should be used for playback.
 class MEDIA_EXPORT ChunkDemuxerFactory : public DemuxerFactory {
  public:
-  // Takes ownership of |delegate_factory|.
-  ChunkDemuxerFactory(const std::string& url, DemuxerFactory* delegate_factory,
+  ChunkDemuxerFactory(const std::string& url,
+                      scoped_ptr<DemuxerFactory> delegate_factory,
                       ChunkDemuxerClient* client);
   virtual ~ChunkDemuxerFactory();
 
   // 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:
   std::string url_;