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

sql/sqlite_features_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 <string>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "sql/connection.h"
 #include "sql/statement.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/sqlite/sqlite3.h"
 
 // Test that certain features are/are-not enabled in our SQLite.
 
 namespace {
 
 void CaptureErrorCallback(int* error_pointer, std::string* sql_text,
                           int error, sql::Statement* stmt) {
   *error_pointer = error;
   const char* text = stmt ? stmt->GetSQLStatement() : NULL;
   *sql_text = text ? text : "no statement available";
 }
 
 class SQLiteFeaturesTest : public testing::Test {
  public:
   SQLiteFeaturesTest() : error_(SQLITE_OK) {}
 
-  virtual void SetUp() {
+  void SetUp() override {
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     ASSERT_TRUE(db_.Open(temp_dir_.path().AppendASCII("SQLStatementTest.db")));
 
     // The error delegate will set |error_| and |sql_text_| when any sqlite
     // statement operation returns an error code.
     db_.set_error_callback(base::Bind(&CaptureErrorCallback,
                                       &error_, &sql_text_));
   }
 
-  virtual void TearDown() {
+  void TearDown() override {
     // If any error happened the original sql statement can be found in
     // |sql_text_|.
     EXPECT_EQ(SQLITE_OK, error_);
     db_.Close();
   }
 
   sql::Connection& db() { return db_; }
 
  private:
   base::ScopedTempDir temp_dir_;
@@ skipping 21 matching lines @@
   ASSERT_TRUE(db().Execute("CREATE VIRTUAL TABLE foo USING fts2(x)"));
 }
 #endif
 
 // fts3 is used for current history files, and also for WebDatabase.
 TEST_F(SQLiteFeaturesTest, FTS3) {
   ASSERT_TRUE(db().Execute("CREATE VIRTUAL TABLE foo USING fts3(x)"));
 }
 
 }  // namespace