Add VisibleForTesting to create TelephonyRegistryTest.

Bug: 113305153
Test: unittest
Change-Id: Ie59b2da76fbc813ce011d4d0ab3ff533a6006e14
diff --git a/services/core/java/com/android/server/TelephonyRegistry.java b/services/core/java/com/android/server/TelephonyRegistry.java
index 566ce4f..c44a81e 100644
--- a/services/core/java/com/android/server/TelephonyRegistry.java
+++ b/services/core/java/com/android/server/TelephonyRegistry.java
@@ -50,6 +50,7 @@
 import android.telephony.VoLteServiceState;
 import android.util.LocalLog;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.app.IBatteryStats;
 import com.android.internal.telephony.IOnSubscriptionsChangedListener;
 import com.android.internal.telephony.IPhoneStateListener;
@@ -82,7 +83,8 @@
  * Eventually we may want to remove the notion of dummy value but for now this
  * looks like the best approach.
  */
-class TelephonyRegistry extends ITelephonyRegistry.Stub {
+@VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
+public class TelephonyRegistry extends ITelephonyRegistry.Stub {
     private static final String TAG = "TelephonyRegistry";
     private static final boolean DBG = false; // STOPSHIP if true
     private static final boolean DBG_LOC = false; // STOPSHIP if true
@@ -315,7 +317,8 @@
     // calls go through a oneway interface and local calls going through a
     // handler before they get to app code.
 
-    TelephonyRegistry(Context context) {
+    @VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
+    public TelephonyRegistry(Context context) {
         CellLocation  location = CellLocation.getEmpty();
 
         mContext = context;