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

media/base/data_buffer.h

Index: media/base/data_buffer.h
diff --git a/media/base/data_buffer.h b/media/base/data_buffer.h
index bb010f3f8ef1fc48f1000d85345d0a3b80ba3edc..d5226b23ecc05a504df84530e0ccff289ace4a30 100644
--- a/media/base/data_buffer.h
+++ b/media/base/data_buffer.h
@@ -17,9 +17,8 @@ namespace media {
 
 class MEDIA_EXPORT DataBuffer : public Buffer {
  public:
-  // Takes ownership of the passed |buffer|, assumes valid data of size
-  // |buffer_size|.
-  DataBuffer(uint8* buffer, size_t buffer_size);
+  // Assumes valid data of size |buffer_size|.
+  DataBuffer(scoped_array<uint8> buffer, size_t buffer_size);
 
   // Allocates buffer of size |buffer_size|. If |buffer_size| is 0, |data_| is
   // set to a NULL ptr.