Fix tests, add fix

Author: camsim99

packages/video_player/video_player_android/android/src/main/java/io/flutter/plugins/videoplayer/VideoPlayer.java

@@ -304,6 +304,14 @@ void sendInitialized() {
         }
         event.put("width", width);
         event.put("height", height);
+
+        // Rotating the video with ExoPlayer does not seem to be possible with a Surface,
+        // so inform the Flutter code that the widget needs to be rotated to prevent
+        // upside-down playback for videos with rotationDegrees of 180 (other orientations work
+        // correctly without correction).
+        if (rotationDegrees == 180) {
+          event.put("rotationCorrection", rotationDegrees);
+        }
       }
 
       eventSink.success(event);