Standardize usage of virtual/override/final specifiers.

chrome/test/base/browser_with_test_window_test.h

Index: chrome/test/base/browser_with_test_window_test.h
diff --git a/chrome/test/base/browser_with_test_window_test.h b/chrome/test/base/browser_with_test_window_test.h
index 41c598475a51409df116911d7f598e4645c447e1..cd6ae69092abba87eb6b70f6e3348a4c52a0b10c 100644
--- a/chrome/test/base/browser_with_test_window_test.h
+++ b/chrome/test/base/browser_with_test_window_test.h
@@ -88,10 +88,10 @@ class BrowserWithTestWindowTest : public testing::Test {
                             chrome::HostDesktopType host_desktop_type,
                             bool hosted_app);
 
-  virtual ~BrowserWithTestWindowTest();
+  ~BrowserWithTestWindowTest() override;
 
-  virtual void SetUp() override;
-  virtual void TearDown() override;
+  void SetUp() override;
+  void TearDown() override;
 
  protected:
   BrowserWindow* window() const { return window_.get(); }