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

sync/syncable/syncable_unittest.cc

 // Copyright 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 <string>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 128 matching lines @@
   test_dir->StartFailingSaveChanges();
   ASSERT_EQ(FAILED_INITIAL_WRITE, test_dir->Open(name, &delegate,
                                                  NullTransactionObserver()));
 }
 
 // A variant of SyncableDirectoryTest that uses a real sqlite database.
 class OnDiskSyncableDirectoryTest : public SyncableDirectoryTest {
  protected:
   // SetUp() is called before each test case is run.
   // The sqlite3 DB is deleted before each test is run.
-  virtual void SetUp() {
+  void SetUp() override {
     SyncableDirectoryTest::SetUp();
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     file_path_ = temp_dir_.path().Append(
         FILE_PATH_LITERAL("Test.sqlite3"));
     base::DeleteFile(file_path_, true);
     CreateDirectory();
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     // This also closes file handles.
     dir()->SaveChanges();
     dir().reset();
     base::DeleteFile(file_path_, true);
     SyncableDirectoryTest::TearDown();
   }
 
   // Creates a new directory.  Deletes the old directory, if it exists.
   void CreateDirectory() {
     test_directory_ = TestDirectory::Create(
@@ skipping 369 matching lines @@
 
   ModelTypeSet set(BOOKMARKS);
   dir()->PurgeEntriesWithTypeIn(set, ModelTypeSet(), ModelTypeSet());
   EXPECT_TRUE(IsInMetahandlesToPurge(handle1));
   ASSERT_FALSE(dir()->SaveChanges());
   EXPECT_TRUE(IsInMetahandlesToPurge(handle1));
 }
 
 class SyncableDirectoryManagement : public testing::Test {
  public:
-  virtual void SetUp() {
-    ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
-  }
+  void SetUp() override { ASSERT_TRUE(temp_dir_.CreateUniqueTempDir()); }
 
-  virtual void TearDown() {
-  }
+  void TearDown() override {}
+
  protected:
   base::MessageLoop message_loop_;
   base::ScopedTempDir temp_dir_;
   FakeEncryptor encryptor_;
   TestUnrecoverableErrorHandler handler_;
   NullDirectoryChangeDelegate delegate_;
 };
 
 TEST_F(SyncableDirectoryManagement, TestFileRelease) {
   base::FilePath path =
@@ skipping 103 matching lines @@
 TEST_F(SyncableClientTagTest, TestClientTagIndexDuplicateServer) {
   EXPECT_TRUE(CreateWithDefaultTag(factory_.NewServerId(), true));
   EXPECT_FALSE(CreateWithDefaultTag(factory_.NewServerId(), true));
   EXPECT_FALSE(CreateWithDefaultTag(factory_.NewServerId(), false));
   EXPECT_FALSE(CreateWithDefaultTag(factory_.NewLocalId(), false));
   EXPECT_FALSE(CreateWithDefaultTag(factory_.NewLocalId(), true));
 }
 
 }  // namespace syncable
 }  // namespace syncer