Useful annotations for code documentation.

Bug: 6537978
Change-Id: I806c3c09e3255f8789455f13bf37c1dde2a93f1f
diff --git a/services/java/com/android/server/NativeDaemonConnector.java b/services/java/com/android/server/NativeDaemonConnector.java
index 92af9a9..5e94a9f 100644
--- a/services/java/com/android/server/NativeDaemonConnector.java
+++ b/services/java/com/android/server/NativeDaemonConnector.java
@@ -25,6 +25,7 @@
 import android.util.LocalLog;
 import android.util.Slog;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.google.android.collect.Lists;
 
 import java.nio.charset.Charsets;
@@ -400,7 +401,7 @@
      * Append the given argument to {@link StringBuilder}, escaping as needed,
      * and surrounding with quotes when it contains spaces.
      */
-    // @VisibleForTesting
+    @VisibleForTesting
     static void appendEscaped(StringBuilder builder, String arg) {
         final boolean hasSpaces = arg.indexOf(' ') >= 0;
         if (hasSpaces) {