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

media/base/media_file_checker.cc

 // Copyright 2013 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.
 
 #include "media/base/media_file_checker.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <map>
+#include <memory>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/time/time.h"
 #include "media/ffmpeg/ffmpeg_common.h"
 #include "media/filters/blocking_url_protocol.h"
 #include "media/filters/ffmpeg_glue.h"
 #include "media/filters/file_data_source.h"
 
 namespace media {
@@ skipping 31 matching lines @@
       AVCodec* codec = avcodec_find_decoder(c->codec_id);
       if (codec && avcodec_open2(c, codec, NULL) >= 0)
         stream_contexts[i] = c;
     }
   }
 
   if (stream_contexts.size() == 0)
     return false;
 
   AVPacket packet;
-  scoped_ptr<AVFrame, media::ScopedPtrAVFreeFrame> frame(av_frame_alloc());
+  std::unique_ptr<AVFrame, media::ScopedPtrAVFreeFrame> frame(av_frame_alloc());
   int result = 0;
 
   const base::TimeTicks deadline = base::TimeTicks::Now() +
       std::min(check_time,
                base::TimeDelta::FromSeconds(kMaxCheckTimeInSeconds));
   do {
     result = av_read_frame(glue.format_context(), &packet);
     if (result < 0)
       break;
 
@@ skipping 26 matching lines @@
       if (result >= 0 && frame_decoded)
         av_frame_unref(frame.get());
     }
     av_packet_unref(&packet);
   } while (base::TimeTicks::Now() < deadline && read_ok && result >= 0);
 
   return read_ok && (result == AVERROR_EOF || result >= 0);
 }
 
 }  // namespace media