Remove the last of the references.

Change-Id: Id68cdab7e972e3e78e2065e56b8a095c3d496df2
diff --git a/include/ndk/NdkMediaMuxer.h b/include/ndk/NdkMediaMuxer.h
index 1ddc51d..90d946c 100644
--- a/include/ndk/NdkMediaMuxer.h
+++ b/include/ndk/NdkMediaMuxer.h
@@ -110,7 +110,7 @@
  * by the encoder.)
  */
 media_status_t AMediaMuxer_writeSampleData(AMediaMuxer *muxer,
-        size_t trackIdx, const uint8_t *data, const AMediaCodecBufferInfo &info);
+        size_t trackIdx, const uint8_t *data, const AMediaCodecBufferInfo *info);
 
 #ifdef __cplusplus
 } // extern "C"