replace OVERRIDE and FINAL with override and final in ash/

ash/system/user/tray_user_separator.h

Index: ash/system/user/tray_user_separator.h
diff --git a/ash/system/user/tray_user_separator.h b/ash/system/user/tray_user_separator.h
index 003e4cd1d0828888509027c2849cdd1825dd0806..18153f76b4445b5adf7bc470bf574616d74e5964 100644
--- a/ash/system/user/tray_user_separator.h
+++ b/ash/system/user/tray_user_separator.h
@@ -23,16 +23,16 @@ class ASH_EXPORT TrayUserSeparator : public SystemTrayItem {
 
  private:
   // Overridden from SystemTrayItem.
-  virtual views::View* CreateTrayView(user::LoginStatus status) OVERRIDE;
-  virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
-  virtual views::View* CreateDetailedView(user::LoginStatus status) OVERRIDE;
-  virtual void DestroyTrayView() OVERRIDE {}
-  virtual void DestroyDefaultView() OVERRIDE;
-  virtual void DestroyDetailedView() OVERRIDE {}
+  virtual views::View* CreateTrayView(user::LoginStatus status) override;
+  virtual views::View* CreateDefaultView(user::LoginStatus status) override;
+  virtual views::View* CreateDetailedView(user::LoginStatus status) override;
+  virtual void DestroyTrayView() override {}
+  virtual void DestroyDefaultView() override;
+  virtual void DestroyDetailedView() override {}
   virtual void UpdateAfterLoginStatusChange(
-      user::LoginStatus status) OVERRIDE {}
+      user::LoginStatus status) override {}
   virtual void UpdateAfterShelfAlignmentChange(
-      ShelfAlignment alignment) OVERRIDE {}
+      ShelfAlignment alignment) override {}
 
   // True if the separator gets shown.
   bool separator_shown_;