ContextCompatApi24 shouldn't be public visibility

Bug: 29758817
Change-Id: I99341b3376a8cd3858b00c9f0cd58f6eae8fdaf0
diff --git a/compat/api24/android/support/v4/content/ContextCompatApi24.java b/compat/api24/android/support/v4/content/ContextCompatApi24.java
index 9763240..e94d702 100644
--- a/compat/api24/android/support/v4/content/ContextCompatApi24.java
+++ b/compat/api24/android/support/v4/content/ContextCompatApi24.java
@@ -20,8 +20,7 @@
 
 import java.io.File;
 
-/** {@hide} */
-public class ContextCompatApi24 {
+class ContextCompatApi24 {
     public static File getDataDir(Context context) {
         return context.getDataDir();
     }