Standardize usage of virtual/override/final in chrome/

chrome/test/base/menu_model_test.h

Index: chrome/test/base/menu_model_test.h
diff --git a/chrome/test/base/menu_model_test.h b/chrome/test/base/menu_model_test.h
index 108f67b0ee4d00ecf65c43647dce5ff2eb9ab34e..8133485736c2a8e4b2f135c51dbfb6beed1ed7b4 100644
--- a/chrome/test/base/menu_model_test.h
+++ b/chrome/test/base/menu_model_test.h
@@ -23,12 +23,11 @@ class MenuModelTest {
    public:
     Delegate() : execute_count_(0), enable_count_(0) {}
 
-    virtual bool IsCommandIdChecked(int command_id) const override;
-    virtual bool IsCommandIdEnabled(int command_id) const override;
-    virtual bool GetAcceleratorForCommandId(
-        int command_id,
-        ui::Accelerator* accelerator) override;
-    virtual void ExecuteCommand(int command_id, int event_flags) override;
+    bool IsCommandIdChecked(int command_id) const override;
+    bool IsCommandIdEnabled(int command_id) const override;
+    bool GetAcceleratorForCommandId(int command_id,
+                                    ui::Accelerator* accelerator) override;
+    void ExecuteCommand(int command_id, int event_flags) override;
 
     int execute_count_;
     mutable int enable_count_;