Standardize usage of virtual/override/final in chrome/browser/sync/

chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc

Index: chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc
diff --git a/chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc b/chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc
index 5f42931129444da8844890ce0846015873db77e5..d517cf1a1e5e1fb662f50af15dfc57cb0af9be8a 100644
--- a/chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc
+++ b/chrome/browser/sync/glue/sync_backend_host_impl_unittest.cc
@@ -115,11 +115,10 @@ class FakeSyncManagerFactory : public syncer::SyncManagerFactory {
        fake_manager_(fake_manager) {
     *fake_manager_ = NULL;
   }
-  virtual ~FakeSyncManagerFactory() {}
+  ~FakeSyncManagerFactory() override {}
 
   // SyncManagerFactory implementation.  Called on the sync thread.
-  virtual scoped_ptr<SyncManager> CreateSyncManager(
-      std::string name) override {
+  scoped_ptr<SyncManager> CreateSyncManager(std::string name) override {
     *fake_manager_ = new FakeSyncManager(initial_sync_ended_types_,
                                          progress_marker_types_,
                                          configure_fail_types_);