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

media/filters/ffmpeg_glue.h

Index: media/filters/ffmpeg_glue.h
diff --git a/media/filters/ffmpeg_glue.h b/media/filters/ffmpeg_glue.h
index 0093dab97189555101fc3be86682c18322a199a2..7d464eb37a67dce62a2c648f0b11046504ac8150 100644
--- a/media/filters/ffmpeg_glue.h
+++ b/media/filters/ffmpeg_glue.h
@@ -27,8 +27,9 @@
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "media/base/media_export.h"
 #include "media/ffmpeg/ffmpeg_deleters.h"
 
@@ -74,7 +75,7 @@ class MEDIA_EXPORT FFmpegGlue {
  private:
   bool open_called_;
   AVFormatContext* format_context_;
-  scoped_ptr<AVIOContext, ScopedPtrAVFree> avio_context_;
+  std::unique_ptr<AVIOContext, ScopedPtrAVFree> avio_context_;
 
   DISALLOW_COPY_AND_ASSIGN(FFmpegGlue);
 };