Only pass resources to updatable

Test: Instantiate MediaController2
Change-Id: I5a9eea0270a8a9bee6862a41bcc8a7772de00ab4
diff --git a/packages/MediaComponents/proguard.cfg b/packages/MediaComponents/proguard.cfg
index 1b06c8c..43f2e63 100644
--- a/packages/MediaComponents/proguard.cfg
+++ b/packages/MediaComponents/proguard.cfg
@@ -16,5 +16,5 @@
 
 # Keep entry point for updatable Java classes
 -keep public class com.android.media.update.ApiFactory {
-   public static java.lang.Object initialize(android.content.Context, android.content.Context);
+   public static java.lang.Object initialize(android.content.res.Resources, android.content.res.Resources$Theme);
 }