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

media/filters/gpu_video_decoder.h

 // Copyright (c) 2012 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_FILTERS_GPU_VIDEO_DECODER_H_
 #define MEDIA_FILTERS_GPU_VIDEO_DECODER_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 32 matching lines @@
     // Allocate & delete native textures.
     virtual bool CreateTextures(int32 count, const gfx::Size& size,
                                 std::vector<uint32>* texture_ids) = 0;
     virtual bool DeleteTexture(uint32 texture_id) = 0;
 
     // Allocate & return a shared memory segment.  Caller is responsible for
     // Close()ing the returned pointer.
     virtual base::SharedMemory* CreateSharedMemory(size_t size) = 0;
   };
 
-  // Takes ownership of |factories| but not |message_loop|.
-  GpuVideoDecoder(MessageLoop* message_loop, Factories* factories);
+  GpuVideoDecoder(MessageLoop* message_loop, scoped_ptr<Factories> factories);
   virtual ~GpuVideoDecoder();
 
   // Filter implementation.
   virtual void Stop(const base::Closure& callback) OVERRIDE;
   virtual void Seek(base::TimeDelta time, const FilterStatusCB& cb) OVERRIDE;
   virtual void Pause(const base::Closure& callback) OVERRIDE;
   virtual void Flush(const base::Closure& callback) OVERRIDE;
 
   // VideoDecoder implementation.
   virtual void Initialize(DemuxerStream* demuxer_stream,
@@ skipping 113 matching lines @@
   std::list<scoped_refptr<VideoFrame> > ready_video_frames_;
   int64 next_picture_buffer_id_;
   int64 next_bitstream_buffer_id_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuVideoDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_GPU_VIDEO_DECODER_H_