Convert media/formats to std::unique_ptr

media/formats/mp4/track_run_iterator.h

Index: media/formats/mp4/track_run_iterator.h
diff --git a/media/formats/mp4/track_run_iterator.h b/media/formats/mp4/track_run_iterator.h
index 4903f7645d45b5a36906ce51e8b89b0889be3d43..a04f2becb5c0f44b6d35f37524a3cbd49e7d6deb 100644
--- a/media/formats/mp4/track_run_iterator.h
+++ b/media/formats/mp4/track_run_iterator.h
@@ -8,10 +8,10 @@
 #include <stddef.h>
 #include <stdint.h>
 
+#include <memory>
 #include <vector>
 
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "media/base/media_export.h"
 #include "media/base/media_log.h"
@@ -87,7 +87,7 @@ class MEDIA_EXPORT TrackRunIterator {
 
   // Only call when is_encrypted() is true and AuxInfoNeedsToBeCached() is
   // false. Result is owned by caller.
-  scoped_ptr<DecryptConfig> GetDecryptConfig();
+  std::unique_ptr<DecryptConfig> GetDecryptConfig();
 
  private:
   void ResetRun();