Convert //media/filters from scoped_ptr to std::unique_ptr

media/filters/ffmpeg_video_decoder.h

Index: media/filters/ffmpeg_video_decoder.h
diff --git a/media/filters/ffmpeg_video_decoder.h b/media/filters/ffmpeg_video_decoder.h
index 30c81346451aba58616f37b9ca41baa8ff78f71d..c5fdb45c44825c3ec3561c5454fa4cf60e37d8fb 100644
--- a/media/filters/ffmpeg_video_decoder.h
+++ b/media/filters/ffmpeg_video_decoder.h
@@ -6,10 +6,10 @@
 #define MEDIA_FILTERS_FFMPEG_VIDEO_DECODER_H_
 
 #include <list>
+#include <memory>
 
 #include "base/callback.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "media/base/video_decoder.h"
 #include "media/base/video_decoder_config.h"
@@ -83,8 +83,8 @@ class MEDIA_EXPORT FFmpegVideoDecoder : public VideoDecoder {
   OutputCB output_cb_;
 
   // FFmpeg structures owned by this object.
-  scoped_ptr<AVCodecContext, ScopedPtrAVFreeContext> codec_context_;
-  scoped_ptr<AVFrame, ScopedPtrAVFreeFrame> av_frame_;
+  std::unique_ptr<AVCodecContext, ScopedPtrAVFreeContext> codec_context_;
+  std::unique_ptr<AVFrame, ScopedPtrAVFreeFrame> av_frame_;
 
   VideoDecoderConfig config_;