Standardize usage of virtual/override/final specifiers.

components/sync_driver/device_info_sync_service_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/message_loop/message_loop.h"
 #include "components/sync_driver/device_info_sync_service.h"
 #include "components/sync_driver/local_device_info_provider_mock.h"
 #include "sync/api/sync_change.h"
 #include "sync/api/sync_change_processor.h"
 #include "sync/api/sync_change_processor_wrapper_for_test.h"
@@ skipping 59 matching lines @@
   }
 
  private:
   SyncChangeList change_list_;
 };
 
 class DeviceInfoSyncServiceTest : public testing::Test,
                                   public DeviceInfoTracker::Observer {
  public:
   DeviceInfoSyncServiceTest() : num_device_info_changed_callbacks_(0) {}
-  virtual ~DeviceInfoSyncServiceTest() {}
+  ~DeviceInfoSyncServiceTest() override {}
 
-  virtual void SetUp() override {
+  void SetUp() override {
     local_device_.reset(new LocalDeviceInfoProviderMock(
         "guid_1",
         "client_1",
         "Chromium 10k",
         "Chrome 10k",
         sync_pb::SyncEnums_DeviceType_TYPE_LINUX,
         "device_id"));
     sync_service_.reset(new DeviceInfoSyncService(local_device_.get()));
     sync_processor_.reset(new TestChangeProcessor());
     // Register observer
     sync_service_->AddObserver(this);
   }
 
-  virtual void TearDown() override {
-    sync_service_->RemoveObserver(this);
-  }
+  void TearDown() override { sync_service_->RemoveObserver(this); }
 
   void OnDeviceInfoChange() override { num_device_info_changed_callbacks_++; }
 
   scoped_ptr<SyncChangeProcessor> PassProcessor() {
     return scoped_ptr<SyncChangeProcessor>(
         new SyncChangeProcessorWrapperForTest(sync_processor_.get()));
   }
 
   scoped_ptr<SyncErrorFactory> CreateAndPassSyncErrorFactory() {
     return scoped_ptr<SyncErrorFactory>(new SyncErrorFactoryMock());
@@ skipping 435 matching lines @@
   EXPECT_EQ("client_1", sync_processor_->client_name_at(0));
 
   backup_time = syncer::ProtoTimeToTime(
       sync_processor_->device_info_at(0).backup_timestamp());
   EXPECT_EQ(6000, backup_time.ToTimeT());
 }
 
 }  // namespace
 
 }  // namespace sync_driver