NuPlayer: use getTimestamp instead of getPosition

Bug: 14659809
Bug: 16985287
Change-Id: I59ec72fbd40a9b8d28fe548ddad082c03000c045
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h
index 4fe7075..3b96e88 100644
--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -85,6 +85,7 @@
         virtual uint32_t        latency() const;
         virtual float           msecsPerFrame() const;
         virtual status_t        getPosition(uint32_t *position) const;
+        virtual status_t        getTimestamp(AudioTimestamp &ts) const;
         virtual status_t        getFramesWritten(uint32_t *frameswritten) const;
         virtual int             getSessionId() const;
         virtual uint32_t        getSampleRate() const;
@@ -198,6 +199,7 @@
         virtual uint32_t        latency() const;
         virtual float           msecsPerFrame() const;
         virtual status_t        getPosition(uint32_t *position) const;
+        virtual status_t        getTimestamp(AudioTimestamp &ts) const;
         virtual status_t        getFramesWritten(uint32_t *frameswritten) const;
         virtual int             getSessionId() const;
         virtual uint32_t        getSampleRate() const;