Replace scoped_ptr with std::unique_ptr in //media/base.

media/base/bitstream_buffer.h

 // Copyright (c) 2011 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_BASE_BITSTREAM_BUFFER_H_
 #define MEDIA_BASE_BITSTREAM_BUFFER_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 64 matching lines @@
   size_t size_;
   off_t offset_;
 
   // This is only set when necessary. For example, AndroidVideoDecodeAccelerator
   // needs the timestamp because the underlying decoder may require it to
   // determine the output order.
   base::TimeDelta presentation_timestamp_;
 
   // The following fields come from DecryptConfig.
   // TODO(timav): Try to DISALLOW_COPY_AND_ASSIGN and include these params as
-  // scoped_ptr<DecryptConfig> or explain why copy & assign is needed.
+  // std::unique_ptr<DecryptConfig> or explain why copy & assign is needed.
 
   std::string key_id_;                      // key ID.
   std::string iv_;                          // initialization vector
   std::vector<SubsampleEntry> subsamples_;  // clear/cypher sizes
 
   friend struct IPC::ParamTraits<media::BitstreamBuffer>;
 
   // Allow compiler-generated copy & assign constructors.
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_BITSTREAM_BUFFER_H_