Standardize usage of virtual/override/final in chrome/browser/

chrome/browser/status_icons/status_icon_unittest.cc

Index: chrome/browser/status_icons/status_icon_unittest.cc
diff --git a/chrome/browser/status_icons/status_icon_unittest.cc b/chrome/browser/status_icons/status_icon_unittest.cc
index f5879e37cd42aeabeb014f16e16e5b433f7fcba8..a108b799e77478ad5637f243ab4f439d8e90f7d0 100644
--- a/chrome/browser/status_icons/status_icon_unittest.cc
+++ b/chrome/browser/status_icons/status_icon_unittest.cc
@@ -18,13 +18,12 @@ class MockStatusIconObserver : public StatusIconObserver {
 class TestStatusIcon : public StatusIcon {
  public:
   TestStatusIcon() {}
-  virtual void SetImage(const gfx::ImageSkia& image) override {}
-  virtual void SetToolTip(const base::string16& tool_tip) override {}
-  virtual void UpdatePlatformContextMenu(
-      StatusIconMenuModel* menu) override {}
-  virtual void DisplayBalloon(const gfx::ImageSkia& icon,
-                              const base::string16& title,
-                              const base::string16& contents) override {}
+  void SetImage(const gfx::ImageSkia& image) override {}
+  void SetToolTip(const base::string16& tool_tip) override {}
+  void UpdatePlatformContextMenu(StatusIconMenuModel* menu) override {}
+  void DisplayBalloon(const gfx::ImageSkia& icon,
+                      const base::string16& title,
+                      const base::string16& contents) override {}
 };
 
 TEST(StatusIconTest, ObserverAdd) {