1 files changed, 6 insertions, 4 deletions
diff --git a/src/core/ext/filters/client_channel/backup_poller.cc b/src/core/ext/filters/client_channel/backup_poller.cc
index bfc549e709..906a72b662 100644
--- a/src/core/ext/filters/client_channel/backup_poller.cc
+++ b/src/core/ext/filters/client_channel/backup_poller.cc
@@ -23,17 +23,18 @@
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/lib/gpr/env.h"
+#include "src/core/lib/gpr/string.h"
 #include "src/core/lib/iomgr/error.h"
 #include "src/core/lib/iomgr/pollset.h"
 #include "src/core/lib/iomgr/timer.h"
-#include "src/core/lib/support/env.h"
-#include "src/core/lib/support/string.h"
 #include "src/core/lib/surface/channel.h"
 #include "src/core/lib/surface/completion_queue.h"
 
 #define DEFAULT_POLL_INTERVAL_MS 5000
 
-typedef struct backup_poller {
+namespace {
+struct backup_poller {
   grpc_timer polling_timer;
   grpc_closure run_poller_closure;
   grpc_closure shutdown_closure;
@@ -42,7 +43,8 @@ typedef struct backup_poller {
   bool shutting_down;     // guarded by pollset_mu
   gpr_refcount refs;
   gpr_refcount shutdown_refs;
-} backup_poller;
+};
+}  // namespace
 
 static gpr_once g_once = GPR_ONCE_INIT;
 static gpr_mu g_poller_mu;