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

chrome/browser/sync/sync_global_error_unittest.cc

Index: chrome/browser/sync/sync_global_error_unittest.cc
diff --git a/chrome/browser/sync/sync_global_error_unittest.cc b/chrome/browser/sync/sync_global_error_unittest.cc
index f3ca5f3f666dc32f07c160349e9841aee0093550..7896c57503ab439c9a9fa4d4334c30a00667378d 100644
--- a/chrome/browser/sync/sync_global_error_unittest.cc
+++ b/chrome/browser/sync/sync_global_error_unittest.cc
@@ -35,16 +35,14 @@ class FakeLoginUI : public LoginUIService::LoginUI {
  public:
   FakeLoginUI() : focus_ui_call_count_(0) {}
 
-  virtual ~FakeLoginUI() {}
+  ~FakeLoginUI() override {}
 
   int focus_ui_call_count() const { return focus_ui_call_count_; }
 
  private:
   // Overridden from LoginUIService::LoginUI:
-  virtual void FocusUI() override {
-    ++focus_ui_call_count_;
-  }
-  virtual void CloseUI() override {}
+  void FocusUI() override { ++focus_ui_call_count_; }
+  void CloseUI() override {}
 
   int focus_ui_call_count_;
 };