googleapis: Enable ignore_resource_deletion in bootstrap

Author: ejona86

googleapis/src/main/java/io/grpc/googleapis/GoogleCloudToProdNameResolver.java

@@ -209,7 +209,7 @@ public void run() {
     serverBuilder.put("server_uri", serverUri);
     serverBuilder.put("channel_creds",
         ImmutableList.of(ImmutableMap.of("type", "google_default")));
-    serverBuilder.put("server_features", ImmutableList.of("xds_v3"));
+    serverBuilder.put("server_features", ImmutableList.of("xds_v3", "ignore_resource_deletion"));
     ImmutableMap.Builder<String, Object> authoritiesBuilder = ImmutableMap.builder();
     authoritiesBuilder.put(
         C2P_AUTHORITY,

googleapis/src/test/java/io/grpc/googleapis/GoogleCloudToProdNameResolverTest.java

@@ -187,7 +187,7 @@ public void onGcpAndNoProvidedBootstrapDelegateToXds() {
     assertThat(server).containsExactly(
         "server_uri", "directpath-pa.googleapis.com",
         "channel_creds", ImmutableList.of(ImmutableMap.of("type", "google_default")),
-        "server_features", ImmutableList.of("xds_v3"));
+        "server_features", ImmutableList.of("xds_v3", "ignore_resource_deletion"));
     Map<String, ?> authorities = (Map<String, ?>) bootstrap.get("authorities");
     assertThat(authorities).containsExactly(
         "traffic-director-c2p.xds.googleapis.com",
@@ -217,7 +217,7 @@ public void onGcpAndNoProvidedBootstrapAndFederationEnabledDelegateToXds() {
     assertThat(server).containsExactly(
         "server_uri", "directpath-pa.googleapis.com",
         "channel_creds", ImmutableList.of(ImmutableMap.of("type", "google_default")),
-        "server_features", ImmutableList.of("xds_v3"));
+        "server_features", ImmutableList.of("xds_v3", "ignore_resource_deletion"));
     Map<String, ?> authorities = (Map<String, ?>) bootstrap.get("authorities");
     assertThat(authorities).containsExactly(
         "traffic-director-c2p.xds.googleapis.com",