Mojo: More virtual/override style fixes in mojo/.

mojo/services/window_manager/window_manager_unittests.cc

Index: mojo/services/window_manager/window_manager_unittests.cc
diff --git a/mojo/services/window_manager/window_manager_unittests.cc b/mojo/services/window_manager/window_manager_unittests.cc
index dbd9a489b8e9d5dae4f10453dfe0e51b13593e0a..dd05b4554f7079bdd9625b6557ac4953727d99b4 100644
--- a/mojo/services/window_manager/window_manager_unittests.cc
+++ b/mojo/services/window_manager/window_manager_unittests.cc
@@ -16,10 +16,10 @@ namespace mojo {
 class WindowManagerTestSuite : public base::TestSuite {
  public:
   WindowManagerTestSuite(int argc, char** argv) : TestSuite(argc, argv) {}
-  virtual ~WindowManagerTestSuite() {}
+  ~WindowManagerTestSuite() override {}
 
  protected:
-  virtual void Initialize() override {
+  void Initialize() override {
 #if defined(USE_X11)
     // Each test ends up creating a new thread for the native viewport service.
     // In other words we'll use X on different threads, so tell it that.