Re-enable source re-scan for StreamingSource

Bug: 28666655
Change-Id: I6d142e33958460144cda7370fdf3dd06d28ea3e1
diff --git a/media/libmediaplayerservice/nuplayer/StreamingSource.h b/media/libmediaplayerservice/nuplayer/StreamingSource.h
index 1f95f3c..db88c7f 100644
--- a/media/libmediaplayerservice/nuplayer/StreamingSource.h
+++ b/media/libmediaplayerservice/nuplayer/StreamingSource.h
@@ -46,7 +46,7 @@
 
     virtual void onMessageReceived(const sp<AMessage> &msg);
 
-    virtual sp<MetaData> getFormatMeta(bool audio);
+    virtual sp<AMessage> getFormat(bool audio);
 
 private:
     enum {