Standardize usage of virtual/override/final specifiers in sync/.

sync/internal_api/sync_context_proxy_impl_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 "base/run_loop.h"
 #include "base/sequenced_task_runner.h"
 #include "base/thread_task_runner_handle.h"
 #include "sync/engine/model_type_sync_proxy_impl.h"
 #include "sync/internal_api/public/base/model_type.h"
 #include "sync/internal_api/public/sync_context.h"
 #include "sync/internal_api/sync_context_proxy_impl.h"
 #include "sync/sessions/model_type_registry.h"
 #include "sync/test/engine/mock_nudge_handler.h"
 #include "sync/test/engine/test_directory_setter_upper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
 
 class SyncContextProxyImplTest : public ::testing::Test {
  public:
   SyncContextProxyImplTest()
       : sync_task_runner_(base::ThreadTaskRunnerHandle::Get()),
         type_task_runner_(base::ThreadTaskRunnerHandle::Get()) {}
 
-  virtual void SetUp() {
+  void SetUp() override {
     dir_maker_.SetUp();
     registry_.reset(new ModelTypeRegistry(
         workers_, dir_maker_.directory(), &nudge_handler_));
     context_proxy_.reset(
         new SyncContextProxyImpl(sync_task_runner_, registry_->AsWeakPtr()));
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     context_proxy_.reset();
     registry_.reset();
     dir_maker_.TearDown();
   }
 
   // The sync thread could be shut down at any time without warning.  This
   // function simulates such an event.
   void DisableSync() { registry_.reset(); }
 
   scoped_ptr<SyncContextProxy> GetProxy() { return context_proxy_->Clone(); }
@@ skipping 53 matching lines @@
   themes_sync_proxy->Enable(GetProxy());
 
   base::RunLoop run_loop_;
   run_loop_.RunUntilIdle();
 
   EXPECT_TRUE(themes_sync_proxy->IsConnected());
   DisableSync();
 }
 
 }  // namespace syncer