mediaplayer: add temporary developer settings to use NuPlayer as default

Bug: 11784824
Change-Id: Ic98f5fd15ee283d7f581bdc3331d000198ecc9e8
diff --git a/media/libmediaplayerservice/MediaPlayerFactory.cpp b/media/libmediaplayerservice/MediaPlayerFactory.cpp
index 90aed39..74e5013 100644
--- a/media/libmediaplayerservice/MediaPlayerFactory.cpp
+++ b/media/libmediaplayerservice/MediaPlayerFactory.cpp
@@ -67,6 +67,12 @@
         return NU_PLAYER;
     }
 
+    // TODO: remove this EXPERIMENTAL developer settings property
+    if (property_get("persist.sys.media.use-nuplayer", value, NULL)
+            && !strcasecmp("true", value)) {
+        return NU_PLAYER;
+    }
+
     return STAGEFRIGHT_PLAYER;
 }