Use a surface switch

Summary: Flesh out how surface will be used with a flag in ReactRootView

Reviewed By: mdvacca

Differential Revision: D14112897

fbshipit-source-id: adf6078048dbf83452d3523f0530a4d6dca7b3e8

ReactAndroid/src/main/java/com/facebook/react/ReactInstanceManager.java

@@ -1045,7 +1045,7 @@ public class ReactInstanceManager {
 
     @Nullable Bundle initialProperties = rootView.getAppProperties();
     final int rootTag = uiManagerModule.addRootView(
-      rootView,
+      rootView.getView(),
       initialProperties == null ?
             new WritableNativeMap() : Arguments.fromBundle(initialProperties),
         rootView.getInitialUITemplate());