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

content/browser/gamepad/gamepad_service_unittest.cc

Index: content/browser/gamepad/gamepad_service_unittest.cc
diff --git a/content/browser/gamepad/gamepad_service_unittest.cc b/content/browser/gamepad/gamepad_service_unittest.cc
index 5acf3ebcf55fbd1b4572c8a33d6e7f9343c8684b..8033280b8874837b877d2d69c75ea079283ad012 100644
--- a/content/browser/gamepad/gamepad_service_unittest.cc
+++ b/content/browser/gamepad/gamepad_service_unittest.cc
@@ -24,14 +24,12 @@ class ConnectionListener : public GamepadConsumer {
     ClearCounters();
   }
 
-  virtual void OnGamepadConnected(
-      unsigned index,
-      const blink::WebGamepad& gamepad) override {
+  void OnGamepadConnected(unsigned index,
+                          const blink::WebGamepad& gamepad) override {
     connected_counter_++;
   }
-  virtual void OnGamepadDisconnected(
-      unsigned index,
-      const blink::WebGamepad& gamepad) override {
+  void OnGamepadDisconnected(unsigned index,
+                             const blink::WebGamepad& gamepad) override {
     disconnected_counter_++;
   }