Add OVERRIDE to chrome/browser/sync/.

chrome/browser/sync/glue/non_frontend_data_type_controller.h

Index: chrome/browser/sync/glue/non_frontend_data_type_controller.h
diff --git a/chrome/browser/sync/glue/non_frontend_data_type_controller.h b/chrome/browser/sync/glue/non_frontend_data_type_controller.h
index c48d865f4ae451f6b92940ab905f3b8f6ff25cf3..87d11bd76fd04b1a600552158509c3264eb0e0ff 100644
--- a/chrome/browser/sync/glue/non_frontend_data_type_controller.h
+++ b/chrome/browser/sync/glue/non_frontend_data_type_controller.h
@@ -9,6 +9,7 @@
 #include <string>
 
 #include "base/basictypes.h"
+#include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/waitable_event.h"
 #include "chrome/browser/sync/glue/data_type_controller.h"
@@ -45,17 +46,17 @@ class NonFrontendDataTypeController : public DataTypeController {
   virtual ~NonFrontendDataTypeController();
 
   // DataTypeController interface.
-  virtual void Start(StartCallback* start_callback);
-  virtual void Stop();
+  virtual void Start(StartCallback* start_callback) OVERRIDE;
+  virtual void Stop() OVERRIDE;
   virtual syncable::ModelType type() const = 0;
   virtual browser_sync::ModelSafeGroup model_safe_group() const = 0;
-  virtual std::string name() const;
-  virtual State state() const;
+  virtual std::string name() const OVERRIDE;
+  virtual State state() const OVERRIDE;
 
   // UnrecoverableErrorHandler interface.
   // Note: this is performed on the datatype's thread.
   virtual void OnUnrecoverableError(const tracked_objects::Location& from_here,
-                                    const std::string& message);
+                                    const std::string& message) OVERRIDE;
  protected:
   // For testing only.
   NonFrontendDataTypeController();