Update {virtual,override,final} to follow C++11 style in chrome/browser/chromeos/drive.

chrome/browser/chromeos/drive/directory_loader_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 "chrome/browser/chromeos/drive/directory_loader.h"
 
 #include "base/callback_helpers.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/testing_pref_service.h"
@@ skipping 18 matching lines @@
 
 namespace {
 
 class TestDirectoryLoaderObserver : public ChangeListLoaderObserver {
  public:
   explicit TestDirectoryLoaderObserver(DirectoryLoader* loader)
       : loader_(loader) {
     loader_->AddObserver(this);
   }
 
-  virtual ~TestDirectoryLoaderObserver() {
-    loader_->RemoveObserver(this);
-  }
+  ~TestDirectoryLoaderObserver() override { loader_->RemoveObserver(this); }
 
   const std::set<base::FilePath>& changed_directories() const {
     return changed_directories_;
   }
   void clear_changed_directories() { changed_directories_.clear(); }
 
   // ChageListObserver overrides:
-  virtual void OnDirectoryReloaded(
-      const base::FilePath& directory_path) override {
+  void OnDirectoryReloaded(const base::FilePath& directory_path) override {
     changed_directories_.insert(directory_path);
   }
 
  private:
   DirectoryLoader* loader_;
   std::set<base::FilePath> changed_directories_;
 
   DISALLOW_COPY_AND_ASSIGN(TestDirectoryLoaderObserver);
 };
 
 void AccumulateReadDirectoryResult(ResourceEntryVector* out_entries,
                                    scoped_ptr<ResourceEntryVector> entries) {
   ASSERT_TRUE(entries);
   out_entries->insert(out_entries->end(), entries->begin(), entries->end());
 }
 
 }  // namespace
 
 class DirectoryLoaderTest : public testing::Test {
  protected:
-  virtual void SetUp() override {
+  void SetUp() override {
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     pref_service_.reset(new TestingPrefServiceSimple);
     test_util::RegisterDrivePrefs(pref_service_->registry());
 
     logger_.reset(new EventLogger);
 
     drive_service_.reset(new FakeDriveService);
     ASSERT_TRUE(test_util::SetUpTestEntries(drive_service_.get()));
 
     scheduler_.reset(new JobScheduler(pref_service_.get(),
@@ skipping 161 matching lines @@
 
   // Unlock the loader, this should resume the pending udpate.
   lock.reset();
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(1U, observer.changed_directories().count(
       util::GetDriveMyDriveRootPath()));
 }
 
 }  // namespace internal
 }  // namespace drive