media-internals: Differentiate error, info, and debug log messages

media/formats/mp4/box_reader.cc

Index: media/formats/mp4/box_reader.cc
diff --git a/media/formats/mp4/box_reader.cc b/media/formats/mp4/box_reader.cc
index fd81d13751101796504534ccd9ddf048e4041e55..925859d20bda820f31caf76f7949d106cb432f33 100644
--- a/media/formats/mp4/box_reader.cc
+++ b/media/formats/mp4/box_reader.cc
@@ -160,8 +160,8 @@ bool BoxReader::IsValidTopLevelBox(const FourCC& type,
       return true;
     default:
       // Hex is used to show nonprintable characters and aid in debugging
-      MEDIA_LOG(log_cb) << "Unrecognized top-level box type "
-                        << FourCCToString(type);
+      MEDIA_LOG(DEBUG, log_cb) << "Unrecognized top-level box type "
+                               << FourCCToString(type);
       return false;
   }
 }