Add CredentialInstaller.
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 2ad8fed..23ac7ba 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -1907,6 +1907,9 @@
     <string name="gadget_toggle_wifi">Updating Wi-Fi setting</string>
     <string name="gadget_toggle_bluetooth">Updating Bluetooth setting</string>
 
+    <!-- credential installer title -->
+    <string name="credential_installer_activity_title">Credential installer</string>
+
     <string name="vpn_settings_activity_title">VPN settings</string>
 
     <!-- Title of VPN connect dialog -->