Standardize usage of virtual/override/final specifiers.

remoting/host/host_change_notification_listener_unittest.cc

Index: remoting/host/host_change_notification_listener_unittest.cc
diff --git a/remoting/host/host_change_notification_listener_unittest.cc b/remoting/host/host_change_notification_listener_unittest.cc
index c04c836cdd72af33ab22847d25a5eb4a6e6c7abb..ff9e15b044057d9c93a42beb790d4813054265e3 100644
--- a/remoting/host/host_change_notification_listener_unittest.cc
+++ b/remoting/host/host_change_notification_listener_unittest.cc
@@ -48,7 +48,7 @@ class HostChangeNotificationListenerTest : public testing::Test {
     MOCK_METHOD0(OnHostDeleted, void());
   };
 
-  virtual void SetUp() override {
+  void SetUp() override {
     EXPECT_CALL(signal_strategy_, AddListener(NotNull()))
         .WillRepeatedly(AddListener(&signal_strategy_listeners_));
     EXPECT_CALL(signal_strategy_, RemoveListener(NotNull()))
@@ -60,7 +60,7 @@ class HostChangeNotificationListenerTest : public testing::Test {
         &mock_listener_, kHostId, &signal_strategy_, kTestBotJid));
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     host_change_notification_listener_.reset();
     EXPECT_TRUE(signal_strategy_listeners_.empty());
   }