Standardize usage of virtual/override/final specifiers.

ui/views/focus/focus_manager_factory.cc

Index: ui/views/focus/focus_manager_factory.cc
diff --git a/ui/views/focus/focus_manager_factory.cc b/ui/views/focus/focus_manager_factory.cc
index bcbbfba64a1e624d121a8b8bb63647aa6173ec15..7b16e2bcf30b6c5f3bcefc1ce32e84f27fdb2238 100644
--- a/ui/views/focus/focus_manager_factory.cc
+++ b/ui/views/focus/focus_manager_factory.cc
@@ -14,11 +14,11 @@ namespace {
 class DefaultFocusManagerFactory : public FocusManagerFactory {
  public:
   DefaultFocusManagerFactory() : FocusManagerFactory() {}
-  virtual ~DefaultFocusManagerFactory() {}
+  ~DefaultFocusManagerFactory() override {}
 
  protected:
-  virtual FocusManager* CreateFocusManager(Widget* widget,
-                                           bool desktop_widget) override {
+  FocusManager* CreateFocusManager(Widget* widget,
+                                   bool desktop_widget) override {
     return new FocusManager(widget, NULL /* delegate */);
   }