Standardize usage of virtual/override/final in components/

components/sync_driver/device_info_sync_service_unittest.cc

Index: components/sync_driver/device_info_sync_service_unittest.cc
diff --git a/components/sync_driver/device_info_sync_service_unittest.cc b/components/sync_driver/device_info_sync_service_unittest.cc
index 1dbe6a83a47453c1142066ec689471c375a7176e..9722aa4d9c94726a165b0242234b265dc58d3635 100644
--- a/components/sync_driver/device_info_sync_service_unittest.cc
+++ b/components/sync_driver/device_info_sync_service_unittest.cc
@@ -34,19 +34,18 @@ namespace {
 class TestChangeProcessor : public SyncChangeProcessor {
  public:
   TestChangeProcessor() {}
-  virtual ~TestChangeProcessor() {}
+  ~TestChangeProcessor() override {}
 
   // SyncChangeProcessor implementation.
   // Store a copy of all the changes passed in so we can examine them later.
-  virtual SyncError ProcessSyncChanges(
-      const tracked_objects::Location& from_here,
-      const SyncChangeList& change_list) override {
+  SyncError ProcessSyncChanges(const tracked_objects::Location& from_here,
+                               const SyncChangeList& change_list) override {
     change_list_ = change_list;
     return SyncError();
   }
 
   // This method isn't used in these tests.
-  virtual SyncDataList GetAllSyncData(ModelType type) const override {
+  SyncDataList GetAllSyncData(ModelType type) const override {
     return SyncDataList();
   }
 
@@ -98,9 +97,7 @@ class DeviceInfoSyncServiceTest : public testing::Test,
     sync_service_->RemoveObserver(this);
   }
 
-  virtual void OnDeviceInfoChange() override {
-    num_device_info_changed_callbacks_++;
-  }
+  void OnDeviceInfoChange() override { num_device_info_changed_callbacks_++; }
 
   scoped_ptr<SyncChangeProcessor> PassProcessor() {
     return scoped_ptr<SyncChangeProcessor>(