Move effectively private method further down.

@VisibleForTesting sets the actual visiblity to private (except for tests),
so the method should be further down in code.

PiperOrigin-RevId: 266746628

library/core/src/main/java/com/google/android/exoplayer2/upstream/DefaultHttpDataSource.java

@@ -381,13 +381,6 @@ public class DefaultHttpDataSource extends BaseDataSource implements HttpDataSou
     }
   }
 
-  /** Creates an {@link HttpURLConnection} that is connected with the {@code url}. */
-  @VisibleForTesting
-  /* package */
-  HttpURLConnection openConnection(URL url) throws IOException {
-    return (HttpURLConnection) url.openConnection();
-  }
-
   /**
    * Returns the current connection, or null if the source is not currently opened.
    *
@@ -568,6 +561,12 @@ public class DefaultHttpDataSource extends BaseDataSource implements HttpDataSou
     return connection;
   }
 
+  /** Creates an {@link HttpURLConnection} that is connected with the {@code url}. */
+  @VisibleForTesting
+  /* package */ HttpURLConnection openConnection(URL url) throws IOException {
+    return (HttpURLConnection) url.openConnection();
+  }
+
   /**
    * Handles a redirect.
    *