Block the disable option for WebView Default package

Test: atest ApplicationFeatureProviderImplTest

Bug: 308907090

Change-Id: I21785975b965b04895849d2df71fa2f2b4cb4b2d
diff --git a/tests/robotests/Android.bp b/tests/robotests/Android.bp
index 95a78c7..d313878 100644
--- a/tests/robotests/Android.bp
+++ b/tests/robotests/Android.bp
@@ -57,6 +57,7 @@
         "Settings_robolectric_meta_service_file",
         "SettingsLib-robo-testutils",
         "Settings-robo-testutils",
+        "android.webkit.flags-aconfig-java",
         "androidx.test.core",
         "androidx.test.espresso.core",
         "androidx.test.ext.junit",