Standardize usage of virtual/override/final specifiers.

components/sync_driver/ui_data_type_controller_unittest.cc

Index: components/sync_driver/ui_data_type_controller_unittest.cc
diff --git a/components/sync_driver/ui_data_type_controller_unittest.cc b/components/sync_driver/ui_data_type_controller_unittest.cc
index 23878a22efe9dad3e78a6662a9fd7a711c0e5b7d..aad254e79555a1c033cb37541de61d9c19a45057 100644
--- a/components/sync_driver/ui_data_type_controller_unittest.cc
+++ b/components/sync_driver/ui_data_type_controller_unittest.cc
@@ -33,7 +33,7 @@ class SyncUIDataTypeControllerTest : public testing::Test,
       : type_(syncer::PREFERENCES),
         change_processor_(NULL) {}
 
-  virtual void SetUp() {
+  void SetUp() override {
     preference_dtc_ =
         new UIDataTypeController(
             base::MessageLoopProxy::current(),
@@ -43,7 +43,7 @@ class SyncUIDataTypeControllerTest : public testing::Test,
     SetStartExpectations();
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     // Must be done before we pump the loop.
     syncable_service_.StopSyncing(type_);
     preference_dtc_ = NULL;