NuPlayer: timed text support

Bug: 16385674
Change-Id: Ifa9fbc17a1276aa774d57b82cdce500876a0b543
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerSource.h b/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
index 259925f..0ec017e 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerSource.h
@@ -47,6 +47,7 @@
         kWhatBufferingStart,
         kWhatBufferingEnd,
         kWhatSubtitleData,
+        kWhatTimedTextData,
         kWhatQueueDecoderShutdown,
     };