C++11 override style change for athena

athena/wm/split_view_controller_unittest.cc

Index: athena/wm/split_view_controller_unittest.cc
diff --git a/athena/wm/split_view_controller_unittest.cc b/athena/wm/split_view_controller_unittest.cc
index c90a3cf6eef4b81d7dff9fbd265ac4fd3e9ccd6d..3b6a54e6cc29ed5a633231756596d0213fe57790 100644
--- a/athena/wm/split_view_controller_unittest.cc
+++ b/athena/wm/split_view_controller_unittest.cc
@@ -21,15 +21,15 @@ namespace athena {
 class SplitViewControllerTest : public test::AthenaTestBase {
  public:
   SplitViewControllerTest() {}
-  virtual ~SplitViewControllerTest() {}
+  ~SplitViewControllerTest() override {}
 
   // test::AthenaTestBase:
-  virtual void SetUp() override {
+  void SetUp() override {
     test::AthenaTestBase::SetUp();
     api_.reset(new test::WindowManagerImplTestApi);
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     api_.reset();
     test::AthenaTestBase::TearDown();
   }