@hide ConnectionService APIs.

Bug: 17569532
Change-Id: I68f7237191bd6d7a1a00ba7bb4fd2f8e3d669e8f
diff --git a/telecomm/java/android/telecom/PhoneAccount.java b/telecomm/java/android/telecom/PhoneAccount.java
index 4b059b2..ffe787a 100644
--- a/telecomm/java/android/telecom/PhoneAccount.java
+++ b/telecomm/java/android/telecom/PhoneAccount.java
@@ -16,6 +16,7 @@
 
 package android.telecom;
 
+import android.annotation.SystemApi;
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.content.res.Resources.NotFoundException;
@@ -34,7 +35,9 @@
 /**
  * Describes a distinct account, line of service or call placement method that the system
  * can use to place phone calls.
+ * @hide
  */
+@SystemApi
 public class PhoneAccount implements Parcelable {
 
     /**