Standardize usage of virtual/override/final in ui/

ui/compositor/test/test_suite.h

Index: ui/compositor/test/test_suite.h
diff --git a/ui/compositor/test/test_suite.h b/ui/compositor/test/test_suite.h
index 3daf439426abc6af3eaa1985ff080fd797854b15..5cbefe75020af57f1933bad88e87f6febca557b0 100644
--- a/ui/compositor/test/test_suite.h
+++ b/ui/compositor/test/test_suite.h
@@ -20,12 +20,12 @@ namespace test {
 class CompositorTestSuite : public base::TestSuite {
  public:
   CompositorTestSuite(int argc, char** argv);
-  virtual ~CompositorTestSuite();
+  ~CompositorTestSuite() override;
 
  protected:
   // Overridden from base::TestSuite:
-  virtual void Initialize() override;
-  virtual void Shutdown() override;
+  void Initialize() override;
+  void Shutdown() override;
 
  private:
   scoped_ptr<base::MessageLoop> message_loop_;