some clean up of video size change notification

need to consider rotation when notifying video size change after
initial prepare, in addition to after an output format change.

Bug: 16870964
Change-Id: Icd1c9e901ac932e720ce95b8a983c0edcf251c35
diff --git a/media/libmediaplayerservice/nuplayer/RTSPSource.cpp b/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
index 2338b23..a911f6c 100644
--- a/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
@@ -356,7 +356,7 @@
         {
             onConnected();
 
-            notifyVideoSizeChanged(0, 0);
+            notifyVideoSizeChanged();
 
             uint32_t flags = 0;