replace OVERRIDE and FINAL with override and final in extensions/

extensions/shell/browser/shell_desktop_controller_unittest.cc

Index: extensions/shell/browser/shell_desktop_controller_unittest.cc
diff --git a/extensions/shell/browser/shell_desktop_controller_unittest.cc b/extensions/shell/browser/shell_desktop_controller_unittest.cc
index b62e6e805afad0cec53673790b70e38e11e0b79d..b5cac17792415cc04e7dbabf383fefbf059bbff7 100644
--- a/extensions/shell/browser/shell_desktop_controller_unittest.cc
+++ b/extensions/shell/browser/shell_desktop_controller_unittest.cc
@@ -26,7 +26,7 @@ class ShellDesktopControllerTest : public aura::test::AuraTestBase {
   }
   virtual ~ShellDesktopControllerTest() {}
 
-  virtual void SetUp() OVERRIDE {
+  virtual void SetUp() override {
 #if defined(OS_CHROMEOS)
     scoped_ptr<chromeos::DBusThreadManagerSetter> dbus_setter =
         chromeos::DBusThreadManager::GetSetterForTesting();
@@ -38,7 +38,7 @@ class ShellDesktopControllerTest : public aura::test::AuraTestBase {
     controller_.reset(new ShellDesktopController());
   }
 
-  virtual void TearDown() OVERRIDE {
+  virtual void TearDown() override {
     controller_.reset();
     aura::test::AuraTestBase::TearDown();
 #if defined(OS_CHROMEOS)