Preparing for dynamic GUI extensibility.

Change-Id: Ic25143bb9ad8919d7c9e70d932dde528a9227e6a
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/MainViewResource.java b/web/gui/src/main/java/org/onosproject/ui/impl/MainViewResource.java
index 26b5d8c..e5bb126 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/MainViewResource.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/MainViewResource.java
@@ -33,9 +33,9 @@
 @Path("/")
 public class MainViewResource extends AbstractInjectionResource {
 
-    private static final String CONTENT_TYPE = "Content-Type";
-    private static final String STYLESHEET = "text/css";
-    private static final String SCRIPT = "text/javascript";
+    static final String CONTENT_TYPE = "Content-Type";
+    static final String STYLESHEET = "text/css";
+    static final String SCRIPT = "text/javascript";
 
     @Path("{view}/{resource}")
     @GET