Standardize usage of virtual/override/final specifiers.

ui/views/test/widget_test.h

Index: ui/views/test/widget_test.h
diff --git a/ui/views/test/widget_test.h b/ui/views/test/widget_test.h
index dfeca47c88c239592112b7fd47cc3c406b19ed7e..09119d0a151cadae72c5459e529bd02727eb1ba0 100644
--- a/ui/views/test/widget_test.h
+++ b/ui/views/test/widget_test.h
@@ -49,11 +49,11 @@ namespace test {
 class NativeWidgetCapture : public PlatformNativeWidget {
  public:
   explicit NativeWidgetCapture(internal::NativeWidgetDelegate* delegate);
-  virtual ~NativeWidgetCapture();
+  ~NativeWidgetCapture() override;
 
-  virtual void SetCapture() override;
-  virtual void ReleaseCapture() override;
-  virtual bool HasCapture() const override;
+  void SetCapture() override;
+  void ReleaseCapture() override;
+  bool HasCapture() const override;
 
  private:
   bool mouse_capture_;
@@ -64,7 +64,7 @@ class NativeWidgetCapture : public PlatformNativeWidget {
 class WidgetTest : public ViewsTestBase {
  public:
   WidgetTest();
-  virtual ~WidgetTest();
+  ~WidgetTest() override;
 
   NativeWidget* CreatePlatformNativeWidget(
       internal::NativeWidgetDelegate* delegate);