Implement missing pause/resume support for NuPlayer.

Change-Id: Ia3f1ce521dd4b70e134ef03aa7c9db8e8d39a134
related-to-bug: 2368598
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.h b/media/libmediaplayerservice/nuplayer/NuPlayer.h
index 339b628..bb65162 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.h
@@ -75,6 +75,8 @@
         kWhatRendererNotify,
         kWhatReset,
         kWhatSeek,
+        kWhatPause,
+        kWhatResume,
     };
 
     wp<NuPlayerDriver> mDriver;