Standardize usage of virtual/override/final specifiers.

ash/wm/dock/docked_window_resizer_unittest.cc

Index: ash/wm/dock/docked_window_resizer_unittest.cc
diff --git a/ash/wm/dock/docked_window_resizer_unittest.cc b/ash/wm/dock/docked_window_resizer_unittest.cc
index 27a9fc77ecaf8b0a5d140079ba9d432aa44c9794..c8128261b087d457e43e6ba12c02ec22eacc3e4e 100644
--- a/ash/wm/dock/docked_window_resizer_unittest.cc
+++ b/ash/wm/dock/docked_window_resizer_unittest.cc
@@ -45,16 +45,14 @@ class DockedWindowResizerTest
   DockedWindowResizerTest() : model_(NULL), window_type_(GetParam()) {}
   virtual ~DockedWindowResizerTest() {}
 
-  virtual void SetUp() override {
+  void SetUp() override {
     AshTestBase::SetUp();
     UpdateDisplay("600x400");
     test::ShellTestApi test_api(Shell::GetInstance());
     model_ = test_api.shelf_model();
   }
 
-  virtual void TearDown() override {
-    AshTestBase::TearDown();
-  }
+  void TearDown() override { AshTestBase::TearDown(); }
 
  protected:
   enum DockedEdge {