Standardize usage of virtual/override/final specifiers.

ui/views/test/views_test_base.h

Index: ui/views/test/views_test_base.h
diff --git a/ui/views/test/views_test_base.h b/ui/views/test/views_test_base.h
index 9339da3128eeaabdc5a73951eec72235cebcd2fb..933f60cd5135e45e583f97901188f4086758036a 100644
--- a/ui/views/test/views_test_base.h
+++ b/ui/views/test/views_test_base.h
@@ -24,11 +24,11 @@ class ViewsTestHelper;
 class ViewsTestBase : public PlatformTest {
  public:
   ViewsTestBase();
-  virtual ~ViewsTestBase();
+  ~ViewsTestBase() override;
 
   // testing::Test:
-  virtual void SetUp() override;
-  virtual void TearDown() override;
+  void SetUp() override;
+  void TearDown() override;
 
   void RunPendingMessages();