Reviewer comments and windows fix

src/core/ext/filters/client_channel/lb_policy/xds/xds_routing.cc

@@ -400,6 +400,8 @@ XdsRoutingLb::XdsRoutingChild::XdsRoutingChild(
     gpr_log(GPR_INFO, "[xds_routing_lb %p] created XdsRoutingChild %p for %s",
             xds_routing_policy_.get(), this, name_.c_str());
   }
+  GRPC_CLOSURE_INIT(&on_delayed_removal_timer_, OnDelayedRemovalTimer, this,
+                    grpc_schedule_on_exec_ctx);
 }
 
 XdsRoutingLb::XdsRoutingChild::~XdsRoutingChild() {
@@ -501,8 +503,6 @@ void XdsRoutingLb::XdsRoutingChild::DeactivateLocked() {
   // Set the child weight to 0 so that future picker won't contain this child.
   // Start a timer to delete the child.
   Ref(DEBUG_LOCATION, "XdsRoutingChild+timer").release();
-  GRPC_CLOSURE_INIT(&on_delayed_removal_timer_, OnDelayedRemovalTimer, this,
-                    grpc_schedule_on_exec_ctx);
   grpc_timer_init(
       &delayed_removal_timer_,
       ExecCtx::Get()->Now() + GRPC_XDS_ROUTING_CHILD_RETENTION_INTERVAL_MS,

src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_windows.cc

@@ -100,13 +100,13 @@ class GrpcPolledFdWindows {
   GrpcPolledFdWindows(ares_socket_t as,
                       std::shared_ptr<WorkSerializer> work_serializer,
                       int address_family, int socket_type)
-      : read_buf_(grpc_empty_slice()),
+      : work_serializer_(std::move(work_serializer)),
+        read_buf_(grpc_empty_slice()),
         write_buf_(grpc_empty_slice()),
         tcp_write_state_(WRITE_IDLE),
         gotten_into_driver_list_(false),
         address_family_(address_family),
-        socket_type_(socket_type),
-        work_serializer_(std::move(work_serializer)) {
+        socket_type_(socket_type) {
     gpr_asprintf(&name_, "c-ares socket: %" PRIdPTR, as);
     // Closure Initialization
     GRPC_CLOSURE_INIT(&outer_read_closure_,