Standardize usage of virtual/override/final specifiers.

chrome/browser/themes/theme_syncable_service_unittest.cc

 // Copyright (c) 2012 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 "chrome/browser/themes/theme_syncable_service.h"
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 127 matching lines @@
 
 }  // namespace
 
 class ThemeSyncableServiceTest : public testing::Test {
  protected:
   ThemeSyncableServiceTest()
       : ui_thread_(content::BrowserThread::UI, &loop_),
         file_thread_(content::BrowserThread::FILE, &loop_),
         fake_theme_service_(NULL) {}
 
-  virtual ~ThemeSyncableServiceTest() {}
+  ~ThemeSyncableServiceTest() override {}
 
-  virtual void SetUp() {
+  void SetUp() override {
     profile_.reset(new TestingProfile);
     fake_theme_service_ = BuildForProfile(profile_.get());
     theme_sync_service_.reset(new ThemeSyncableService(profile_.get(),
                                                        fake_theme_service_));
     fake_change_processor_.reset(new syncer::FakeSyncChangeProcessor);
     SetUpExtension();
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     profile_.reset();
     loop_.RunUntilIdle();
   }
 
   void SetUpExtension() {
     CommandLine command_line(CommandLine::NO_PROGRAM);
     extensions::TestExtensionSystem* test_ext_system =
         static_cast<extensions::TestExtensionSystem*>(
                 extensions::ExtensionSystem::Get(profile_.get()));
     ExtensionService* service = test_ext_system->CreateExtensionService(
@@ skipping 479 matching lines @@
 
 TEST_F(PolicyInstalledThemeTest, InstallThemeByPolicy) {
   // Set up theme service to use custom theme that was installed by policy.
   fake_theme_service_->SetTheme(theme_extension_.get());
 
   syncer::SyncDataList data_list =
       theme_sync_service_->GetAllSyncData(syncer::THEMES);
 
   ASSERT_EQ(0u, data_list.size());
 }